P. Nugroho, A., N. S.N. Handayani, S. Darmasiwi, W. G. Zulfikar, and A. A. Rizki. “Biochemical Responses and DNA Damage of Chlorella pyrenoidosa H. Chick upon Exposure to Combined Cu and Cd at Environmentally Realistic Levels: DOI: 10.32526/ennrj.18.3.2020.28”. Environment and Natural Resources Journal, vol. 18, no. 3, May 2020, pp. 290-03, https://ph02.tci-thaijo.org/index.php/ennrj/article/view/240968.