m j hossain, m r i faruque, m r ahmed, s abdullah, m t islam.  (2019).  design and analysis of compact perfect metamaterial absorber for xband applications.  - iop conf. series: earth and environmental science.  1-9. 

syahril amir mohd, kok beng gan, sabirin abdullah, mardina abdullah.  (2019).  the use of raspberry pi and high resolution sound card for very low frequency signal detection.  - proceeding of the 2019 6th international conference on space science and communication (iconspace).  261-266. 

rafidah abd malik, mardina abdullah, sabirin abdullah & mariyam jamilah homam.  (2018).  comparison of measured and predicted hf pperating frequencies during low solar activity.  - international conference on space science and communication (iconspace2017).  . 

suparta w, ismail m, abdullah m, faruque m r i, khairul nizam abdul maulud, mohd shahrul mohd nadzir, mandeep singh jit singh, zamri zainal abidin,sabirin abdullah,teh wai leong, md firoz khan, islam m t, bahari s a, daud n m.  (2017).  2017 international conference on space science and communication.  - 2017 international conference on space science and communication.  1-337. 

malik r. a., abdullah m., abdullah s., homam m. j., yokoyama t., michi, n..  (2015).  ionospheric empirical model: initial approach to muf modeling in the malaysian region.  - proceeding of the 2015 international conference on space science and communication (iconspace), 10-12 august 2015, langkawi, malaysia.  252-255. 

malik r.a., abdullah m., abdullah s., homam m.j..  (2015).  the influence of sunspot number on high frequency radio propagation.  - 2014 ieee asia-pacific conference on applied electromagnetics, apace 2014 - proceeding.  107-110. 

y.h. ho., s. abdullah, m. h. mokhtar.  (2013).  global positioning system (gps) positioning errors modeling using global ionospheric scintillation model (gism).  - proceeding of the 2013 ieee international conference on space science and communication (iconspace).  . 

kalaivani chellappan, sabirin abdullah.  (2013).  angkasa research knowledge organization system : a needs analysis study.  - proceeding of the 2013 ieee international conference on space science and communication (iconspace).  . 

ahmad faizal mohd. zain , sabirin bin abdullah and zeti akma rhazali.  (2013).  dermination of gyro frequency from critical frequency measurements over parit raja, malaysia.  - proceeding of the 2013 ieee international conference on space science and communication (iconspace).  . 

sabirin abdullah, ahmad faizal mohd. zain.  (2012).  diurnal and seasonal variation of critical frequency in malaysia from 2005 to 2007.  - applied mechanics and materials.  .