Phetchuay, P., S. Peerakietkhajorn, S. Duangpan, and P. Buapet. “Toxicity Effects of Copper and Zinc on the Photosynthetic Efficiency and Oxidative Stress-Related Parameters of the Green Alga Chlorella Vulgaris Beijerinck”. Journal of Fisheries and Environment, vol. 43, no. 2, Aug. 2019, pp. 14-26, https://li01.tci-thaijo.org/index.php/JFE/article/view/173171.