Babu. K, P. R., S. N, and P. M. V.R. Ch. “Studies on Sorption of Nickel Metal Using Immobilized Biomass of Skeletonemacostatum Microalgae”. International Journal of Current Innovations in Advanced Research, vol. 2, no. 4, Apr. 2019, pp. 92-100, https://www.ijciar.com/index.php/journal/article/view/107.