Zalzala, H. A. R., Muhson, B. Y., & Ahmed, M. A. (2018). Studing Optical and Electrical Properties of Bi203 Thin Filam for Optoelectronic Applications. Al-Nahrain Journal of Science, 15(1), 80-82. https://anjs.edu.iq/index.php/anjs/article/view/1551