Dilaeleyana, N. H. H. . Hairom, R. Mohd Adnan, A. Shamshul Afendi, F. A. . Abdul Rahman, and N. F. . Hisam. “Performance of Membrane Photocatalytic Reactor on Palm Oil Mill Secondary Effluent Using Zinc Oxide –cymbopogon Citratus (ZnO-CC)”. Multidisciplinary Applied Research and Innovation, vol. 2, no. 1, Nov. 2020, pp. 111-7, https://publisher.uthm.edu.my/periodicals/index.php/mari/article/view/332.