Hairul Khamidun, Mohd, Umi Fazara Md Ali, and Shakila Abdullah. “Calculation of Filter Lifetime Using Empirical Model Applied to Hydrodynamic Column for Phosphate Removal from Greywater”. International Journal of Engineering & Technology 7, no. 3.9 (July 9, 2018): 11–14. Accessed November 26, 2024. https://sciencepubco.com/index.php/ijet/article/view/15263.