I. F. H. Al-Sulaimawi, “Optical Properties of PVA/K2CrO4 Composite”, IHJPAS, vol. 28, no. 2, pp. 32–40, Mar. 2017, Accessed: Jul. 27, 2024. [Online]. Available: https://jih.uobaghdad.edu.iq/index.php/j/article/view/174