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. 

sadia mostafa, mardina abdullah, siti aminah bahari, mohammad tariqul islam.  (2023).  analysis of the regional ionospheric disturbance index during geomagnetic storm in 2012.  - ieee access.  94742-94752. 

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. 

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. 

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. 

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. 

sadia mostafa, mardina abdullah, siti aminah bahari, mohammad tariqul islam.  (2023).  analysis of the regional ionospheric disturbance index during geomagnetic storm in 2012.  - ieee access.  94742-94752. 

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. 

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. 

s a bahari, s r s husin, m abdullah, e ghamry.  (2023).  preliminary study of topside ionospheric variations using swarm satellites over the malaysia region.  - 2022 international conference on science & technology applications in climate change (staclim 2022).  1-8. 

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. 

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. 

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. 

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. 

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

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

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. 

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. 

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

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

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. 

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.  - .  . 

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™.  - .  . 

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.  - .  . 

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.