nur fatin irdina zulhamidi, mardina abdullah, nurul shazana abdul hamid, khairul adib yusof, siti aminah bahari.  (2023).  investigating short-term earthquake precursors detection through monitoring of total electron content variation in ionosphere.  - frontiers in astronomy and space sciences.  1-7. 

mardina bt. abdullah;mohd azlan shah bin jaafar;siti aminah binti bahari;mohd shahrul bin mohd nadzir.  (2023).  characteristic of lighting flashes over antarctica peninsular and it’s respond to the upper atmosphere.  - .  . 

mardina bt. abdullah;lilia bt. halim;badariah binti bais;mohd azlan shah bin jaafar;noridawaty binti mat daud;roslinda binti rosli;siti aminah binti bahari;gan kok beng;nurul shazana binti abdul hamid;nurul hajijah binti hair;sabirin bin abdullah;norsuzli.  (2023).  pengembangan profesionalisma guru dalam sains angkasa melalui aktiviti pengalamian sistem ukm-sidπ™.  - .  . 

nurul shazana binti abdul hamid;mardina bt. abdullah;siti aminah binti bahari.  (2023).  causality between equatorial plasma bubbles phenomenon and counter electrojet current over different solar activity levels.  - .  . 

muhammad khairul adib muhammad yusof, nurul shazana abdul hamid, mardina abdullah, siti aminah bahari.  (2023).  petanda gempa bumi siap siaga dengan teknologi sains angkasa.  - majalah impak kluster tse bil1/2023.  18-19. 

wan shafrina wan mohd jaafar, zie fazleen hashim, noridawaty mat daud, siti aminah bahari, roszaini roslan, nurul hajijah hair, syarina md sah, nurul ain nordin.  (2023).  pelan strategik institut perubahan iklim 2023-2025.  - .  42. 

sadia mostofa, mardina abdullah, mohammad tariqul islam, siti aminah bahari, mohammad badal ahmmed.  (2022).  a gps tec-based ionospheric-m index over malaysia.  - 2022 ieee 20th student conference on research and development (scored).  185-189. 

mardina abdullah, roslinda rosli, siti aminah bahari, noridawaty mat daud, nor syaidah bahri, sabirin abdullah, badariah bais, gan kok beng, lilia halim, nurul shazana abdul hamid.  (2022).  teknologi pengajaran dan pembelajaran ketika covid-19: inklusif, imersif dan integratif.  - .  167. 

siti norhafizah ahmad tarmidzi, nurul saadah ahmad, siti aminah bahari, roslena md zaini, mohd syazwan baharuddin & siti noraida sood.  (2022).  research officers in ukm an overview of achievements.  - 1st research officer national symposium 2022 (reons 2022).  1. 

rohaida mat akir, mardina abdullah, kalaivani a/p chellapan, siti aminah bahari.  (2022).  meramal ionosfera dengan pendekatan rangkaian neural.  - .  127. 

siti aminah bahari.  (2022).  pelaksanaan program di sekolah.  - .  1-12. 

siti aminah bahari, mohd hairul nizam harun, nurul saadah ahmad, siti norhafizah ahmad tarmidzi, roslena md zaini, siti noraida sood.  (2022).  research officers in ukm: an overview of achievements - intelectual properties.  - 1st research officers national symposium 2022 (reons 2022).  1. 

sadia mostofa, mardina abdullah, mohammad tariqul islam, siti aminah bahari, mohammad badal ahmmed.  (2022).  variations of total electron content during quiet and disturbed geomagnetic conditions over malaysia.  - 2022 ieee 6th international symposium on telecommunication technologies (istt).  97-101. 

roslena md zaini, siti aminah bahari, nurul saadah ahmad, siti norhafizah ahmad tarmidzi, mohd syazwan baharuddin, siti noraida sood.  (2022).  research officers in ukm: an overview of achievements - consultations & awards.  - 1st research officers national symposium 2022 (reons 2022).  1. 

nurul saadah ahmad, siti aminah bahari, siti norhafizah ahmad tarmidzi, roslena md zaini, mohd hairul nizam harun, siti noraida sood.  (2022).  research officers in ukm: an overview of achievements - grants & publications.  - 1st research officers national symposium 2022 (reons 2022).  1. 

nurliyana abdul rahim, mohd hezri mokhtar, muhammad raziq mohd rosli, mardina abdullah, siti aminah bahari.  (2021).  the effects of x-class solar flare monitored by ground-based gps receivers.  - 2021 7th international conference on space science and communication (iconspace).  211-214. 

n.a. elmunim, m. abdullah, s.a. bahari.  (2021).  comparison of ionospheric vtec predictions using the holt-winter and iri-2016 model in equatorial region.  - 34th general assembly and scientic symposium of the international union of radio science, ursi gass 2021.  1-4. 

roslinda rosli, mardina abdullah, nur choiro siregar, siti aminah bahari, nurul shazana abdul hamid, sabirin abdullah, gan kok beng, lilia halim, noridawaty mat daud, badariah bais.  (2021).  raising students' awareness and achievement in space science with solar flare monitoring project-based approach.  - 2021 7th international conference on space science and communication.  1-4. 

roslinda rosli, mardina abdullah, nur choiro siregar, siti aminah bahari, nurul shazana abdul hamid, sabirin abdullah, gan kok beng, lilia halim, noridawaty mat daud, badariah bais.  (2021).  raising students' awareness and achievement in space science with solar flare monitoring project- based approach.  - 7th international conference on space science and communication (iconspace).  290-293. 

mardina bt. abdullah;alina marie binti hasbi;mohd azlan shah bin jaafar;siti aminah binti bahari;teh wai leong.  (2021).  development of malaysia ionosperic tec model using spherical harmonic analysis.  - .  . 

siti aminah bahari, nurul shazana abdul hamid, mardina abdullah, sabirin abdullah.  (2021).  examination of solar flare monitoring using a low cost vlf receiver.  - 7th international conference on space science and communication (iconspace).  5-10. 

nouf abd elmunim, mardina abdullah, siti aminah bahari.  (2021).  evaluating the performance of iri-2016 using gps-tec measurements over the equatorial region.  - atmosphere.  1-17. 

mardina abdullah, siti aminah bahari.  (2020).  what works well (www) during covid19: shifting to virtual.  - asia-oceania space weather alliance online conference on 2020.  1-17. 

nurliyana abdul rahim, mohd hezri mokhtar, nadirul hasraf mat nayan, muhammad yusof ismail, suhaila m. buhari, mardina abdullah, siti aminah bahari.  (2020).  l-band amplitude scintillations during solar maximum at a low latitude station.  - international journal of advanced trends in computer science and engineering.  465-470. 

siti aminah bahari, mardina abdullah, tajul ariffin musa, zahra bouya.  (2020).  modelling and mapping ionosphere over malaysia.  - .  117. 

mohd. nizam bin mohd. said;mardina bt. abdullah;khairul nizam abdul maulud;mohd azlan shah bin jaafar;noridawaty binti mat daud;farhanah binti md isa;rawshan ara begum;siti aminah binti bahari;muhamad roszaini bin roslan;nurul hajijah binti hair;sabirin b.  (2020).  low cost earth-space monitoring system.  - .  . 

nouf abd elmunim, mardina abdullah, siti aminah bahari.  (2020).  characterization of ionospheric delay and forecasting using gps-tec over equatorial region.  - annals of geophysics.  1-17. 

roslinda rosli, mardina abdullah, nur choiro siregar, nurul shazana abdul hamid, sabirin abdullah, gan kok beng, lilia halim, noridawaty mat daud, siti aminah bahari, rosadah abd majid, badariah bais.  (2020).  student awareness of space science: rasch model analysis for validity and reliability.  - world journal of education.  170-177. 

mardina abdullah, mohd riduan ahmad,mohd shahrul mohd nadzir, siti aminah bahari, mona riza mohd esa, earle williams, gaopeng lu.  (2020).  characteristic of lighting flashes over antarctica peninsular and its respond to the upper atmosphere progress report 2.  - .  1-10. 

mardina abdullah, mohd riduan ahmad,mohd shahrul mohd nadzir, siti aminah bahari, mona riza mohd esa, earle williams, gaopeng lu, norbayah yusop.  (2020).  characteristic of lighting flashes over antarctica peninsular and its respond to the upper atmosphere progress report 3.  - .  1-11. 

sabirin bin abdullah;tamby subahan bin mohd. meerah;mohd. alauddin bin mohd. ali;alina marie binti hasbi;mohd azlan shah bin jaafar;siti aminah binti bahari;gan kok beng;kalaivani a/p chellappan;saadiah binti ramli;siti raihanah abdani.  (2020).  space science virtual task training knowledge portal development.  - .  . 

mardina abdullah, siti aminah bahari.  (2019).  gnss and ionosphere.  - spirent gnns seminar : timing, navigation & timing solutions.  1-60. 

mardina abdullah & siti aminah bahari.  (2019).  space weather research in ukm.  - international symposium on space science(isss).  1-43. 

fatimah pk ahamad, khairul nizam abdul maulud, noridawaty mat daud, norzatul ezzah hasan, siti aminah bahari, siti aisyah mohamed.  (2019).  proceedings of ipi research colloquium 2018.  - proceedings of ipi research colloquium 2018.  . 

mardina abdullah, mohd riduan ahmad, mohd shahrul mohd nadzir, mona riza mohd esa, earle williams, gaopeng lu, siti aminah bahari.  (2019).  characteristic of lighting flashes over antarctica peninsular and its respond to the upper atmosphere progress report 1.  - .  1-6. 

zainuddin mz, abdullah m, abidin zz, bahari sa, asillam mf, hashim mh, radzi z.  (2019).  review on space science research in malaysia.  - asm science journal.  107-124. 

m. azman, m. abdullah, s. a. bahari, k. a. yusuf, n. s. h. harith.  (2019).  preliminary result of seismic response prior to mw 9.0 of tohoku earthquake in japan.  - proceeding of the 2019 6th international conference on space science and communication (iconspace).  197-200. 

roslinda rosli,mardina abdullah, nur choiro siregar, nurul shazana abdul hamid, sabirin abdullah, gan kok beng, lilia halim,noridawaty mat daud, siti aminah bahari, rosadah abd majid, badariah bais.  (2019).  exploring space science through the ukm-sid pi outreach program.  - proceeding of the 2019 6th international conference on space science and communication (iconspace).  253-256. 

mardina bt. abdullah;mohd azlan shah bin jaafar;noridawaty binti mat daud;siti aminah binti bahari.  (2019).  ionospheric environment characterization for biomass calibration over south east asia (ibisco).  - .  . 

mardina bt. abdullah;mohd azlan shah bin jaafar;siti aminah binti bahari;nurul shazana binti abdul hamid;sabirin bin abdullah;teh wai leong.  (2019).  investigation of ionospheric plasma bubbles occurrence due to wavelike structure modulation.  - .  1-5. 

mardina abdullah, badariah bais, nurul hajijah hair, siti aminah bahari, muhamad roszaini roslan..  (2019).  laporan selepas mengadakan persidangan 2019 6th international conference on space science and communication (iconspace2019).  - .  1-22. 

rohaida mat akir, mardina abdullah, kalaivani chellappan and siti aminah bahari.  (2018).  ionospheric tec response to the partial solar eclipse over the malaysian region.  - international conference on space science and communication (iconspace2017).  87-95. 

siti aminah bahari, mardina abdullah, zahra bouya, tajul ariffin musa, robyn fiori & suhaila m buhari.  (2018).  mapping the regional ionosphere over malaysia using spherical cap harmonic analysis.  - international school on equatorial and low latitude ionosphere (iselion 2018).  . 

siti aminah bahari, mardina abdullah, zahra bouya & tajul ariffin musa.  (2018).  determination of the gps satellite elevation mask angle for ionospheric modeling the ionosphere over malaysia.  - proceeding of ipi research colloquium 2017.  35-38. 

rohaida mat akir, mardina abdullah, kalaivani chellappan & siti aminah bahari.  (2018).  comparison of the neural network and the iri model for forecasting tec over ukm station.  - proceedings of ipi research colloquium 2017.  . 

mardina abdullah, badariah bais, rosadah abd majid, gan kok beng, sabirin abdullah, noridawaty mat daud, siti aminah bahari, nor syaidah bahri.  (2016).  raspberry pi: green technology for space weather monitoring.  - impact.  . 

m. abdullah, n.a. elmunim and s.a. bahari.  (2016).  ionospheric regional forecasting using statistical method for gps application.  - 2016 the 4th aoswa workshop, asia oceania space weather alliance.  . 

m. abdullah, n.a. elmunim, a.m. hasbi and s.a. bahari.  (2016).  statistical approaches of ionospheric correction to improve the accuracy of the gps positioning over malaysia.  - .  . 

rosadah abd majid, mardina abdullah, badariah bais, alina marie hasbi, nor syaidah bahri, siti aminah bahari, mohd hezri mokhtar.  (2015).  malaysian students` perception and attitude towards space science: a pilot study.  - proceeding of the 2015 international conference on space science and communication (iconspace), 10-12 august 2015, langkawi, malaysia.  297-301. 

v. p. bong, w. a. wan zainal abidin, m. abdullah, k. hong ping, t. masri, s. a. bahari, and i. abba.  (2015).  gps signal strength due to ionospheric scintillation: preliminary models over sarawak.  - proceeding of the 2015 international conference on space science and communication (iconspace), 10-12 august 2015, langkawi, malaysia.  89-94. 

mardina abdullah, siti aminah bahari.  (2015).  space weather research development in ukm through international collaboration.  - .  . 

s.a. bahari, m. abdullah, a.m. hasbi.  (2015).  a review of ionospheric studies in malaysia using gps.  - proceeding of the 2015 international conference on space science and communication (iconspace), 10-12 august 2015, langkawi, malaysia.  95-100. 

s. m. buhari, m. abdullah, t. yokoyama, a. m. hasbi, y. otsuka, m. nishioka, s.a. bahari, t. tsugawa.  (2015).  climatology of equatorial plasma bubble observed by myrtknet over the years 2008-2013.  - proceeding of the 2015 international conference on space science and communication (iconspace), 10-12 august 2015, langkawi, malaysia.  101-105. 

mardina abdullah, siti aminah bahari, badariah bais, alina marie hasbi, rosadah abd majid, mohd hezri mokhtar, norsyaidah bahri.  (2014).  space weather innovation competition for school students in malaysia.  - multidisciplinary innovation for sustainability and growth (misg-2014).  . 

suhaila m buhari,mardina abdullah,alina marie hasbi,yuichi otsuka,siti aminah bahari,mohd hezri mokhtar, michi nishioka and takuya tsugawa.  (2014).  the observation of equatorial plasma bubble using all sky imager and gps tec measurement.  - 2014 xxxist ursi general assembly and scientific symposium (ursi gass 2014).  2805-2808. 

mardina bt. abdullah, badariah binti bais, baharudin bin yatim, mohd. alauddin bin mohd. ali, rosadah binti abd majid, siti aminah binti bahari, alina marie binti hasbi, noridawaty binti mat daud.  (2014).  pemantapan pembelajaran sains angkasa kepada pelajar sekolah melalui pemantauan cuaca angkasa dengan alat penerima vlf.  - .  . 

zahira m. radzi, mardina abdullah, alina marie hasbi,js mandeep,siti aminah bahari.  (2013).  seasonal variation of total electron content at equatorial station, langkawi, malaysia.  - proceeding of the 2013 ieee international conference on space science and communication (iconspace).  . 

nouf abd elmunim ahmed ismail; mardina abdullah; alina marie hasbi; siti aminah bahari.  (2013).  short-term forecasting ionospheric delay over ukm, malaysia, using the holt-winter method.  - proceeding of the 2013 ieee international conference on space science and communication (iconspace).  . 

mardina abdullah, alina marie hasbi, siti aminah bahari, muhammad norshafiq abd kadir.  (2012).  forecasting ionospheric delay at ukm using statistical method.  - aogs-agu (wstp) joint assembly.  . 

mardina abdullah, siti aminah bahari and mohd alauddin mohd ali.  (2012).  space science research at ukm toward space weather initiative.  - the 1st aoswa workshop.  . 

wong pik wah, mardina abdullah, alina marie hasbi, siti aminah bahari.  (2012).  development of a vlf receiver system for sudden ionospheric disturbances (sid) detection.  - 2012 5th ieee asia-pacific conference on applied electromagnetics, apace 2012; melaka; malaysia.  . 

mardina abdullah, badariah bais, alina marie hasbi, rosadah abd majid, baharudin yatim, mohd alauddin mohd ali, siti aminah bahari, noridawaty mat daud, mohd hezri mokhtar and mhd fairos asillam..  (2012).  development of ukm-sid teaching module for space science education.  - international forum on engineering education 2012 (ifee 2012).  . 

abdullah m., abdullah s., bahari s.a., asnawi, suparta w., zain a.f.mohd., kadokura a., bjornsson g..  (2011).  tec variations at gps stations over high-latitude and at the equatorial region.  - 2011 ieee international conference on space science and communication: "towards exploring the equatorial phenomena", iconspace 2011; penang.  . 

siti aminah bahari, mardina abdullah, alina marie hasbi and baharudin yatim.  (2011).  diurnal, seasonal and geographic location effects on tec variation over malaysia.  - xxx ursi general assembly and scientific symposium of international union of radio science.  . 

siti aminah bahari, mardina abdullah and baharudin yatim.  (2011).  the response of tec at quasi-conjugate point gps stations during solar flares.  - acta geophysica.  59(2): 407-427. 

mardina abdullah, siti aminah bahari, asnawi.  (2011).  development of ionospheric studies in malaysia particularly in ukm - the national university of malaysia.  - international southeast asia low0latitude ionospheric observation network symposium 2011.  . 

mardina abdullah, siti aminah bahari, azami zaharim, ahmad faizal mohd zain, siti nor afzan abdul habib and cheak bi yi.  (2011).  forecasting of ionospheric delay using the holt-winters method.  - xxx ursi general assembly and scientific symposium of international union of radio science.  . 

m. abdullah, a. zaharim, a.f.m. zain, s. abdullah, s.a. bahari, s.n.a.a. habib.  (2009).  forecasting of ionospheric delay obtained from gps observations using holt-winter method.  - european journal of scientific research.  37(3):471-480.