Suaad H. Ali Al - Badri, and Abdul –Wahab Resan AL - Ebady. “Effect Of Selenium on Antioxidant Enzymes and Content of Photosynthetic Pigments in Algae Chlorococcum Littorale Chihara,Nakayama &Inouye”. University of Thi-Qar Journal, vol. 13, no. 3, Apr. 2019, pp. 42-56, https://jutq.utq.edu.iq/index.php/main/article/view/163.