Azzawi, M. M. (2019) “Studying Effect of Solar Concentrator Type on Small Signal Gain for Pumping Nd: YAG Crystal”, University of Thi-Qar Journal of Science, 4(4), pp. 110-113. Available at: https://www.jsci.utq.edu.iq/index.php/main/article/view/676 (Accessed: 17August2026).