Shaaban, Nizar, and Salahaldin Nouraldin. “Determining the Mutual Interaction Factor for Phonon-Exciton in AgBr Crystal Doped With Copper”. Tishreen University Journal -Basic Sciences Series 41, no. 1 (January 14, 2021). Accessed November 24, 2024. https://journal.tishreen.edu.sy/index.php/bassnc/article/view/7916.