Maha A Rahma, Emad A. Mohammed, and Haithem L Saadon. 2020. “Linear and Nonlinear Optical Properties of Natural Dyes Freestanding Films and Application in Optical Limiting”. University of Thi-Qar Journal of Science 7 (2), 139-43. https://www.jsci.utq.edu.iq/index.php/main/article/view/731.