قنجراوي . خ. . and ناشد غ. . (2022) “Preparation of PbS compound and studying the effect of doping with barium on some of its physical properties”, Tishreen University Journal -Basic Sciences Series, 44(1), pp. 21–32. Available at: https://journal.tishreen.edu.sy/index.php/bassnc/article/view/12080 (Accessed: 6May2024).