Abu Bakar, N., N. Othman, and N. A. E. . Wanja. “Optimisation of PH and Dosage of Banana Peel Activated Carbon in Removing Colour From Textile Wastewater”. Recent Trends in Civil Engineering and Built Environment, vol. 1, no. 1, Dec. 2020, pp. 115-23, https://publisher.uthm.edu.my/periodicals/index.php/rtcebe/article/view/453.