O. Abdulazeez, Mousa, and Saleem H. Trier. 2018. “Effect of Doping and Temperature Operating on (NO2 ) Gas Sensing Properties for MgxZnO1-X /N-Si Heterojunction”. Al-Qadisiyah Journal of Pure Science 22 (2), 87-95. https://journalsc.qu.edu.iq/index.php/JOPS/article/view/591.