Mohammed, Ghuson H, Tunis B Hassan, and Zainab T Abdulhamied. “Structural Characterization of NiO Cr2O3Composites and Hydrothermal Synthesis, Properties Gas Sensing”. Al-Nahrain Journal of Science 21, no. 1 (March 1, 2018): 59–64. Accessed May 22, 2026. https://mail.anjs.edu.iq/index.php/anjs/article/view/155.