Muhamad, M.S. (2020) “Response Surface Methodology For Optimization Of Sodium Sulphate And Sodium Lauryl Sulphate Removal Using Hydroxyapatite Adsorbent”, Progress in Engineering Application and Technology, 1(1), pp. 127–133. Available at: https://publisher.uthm.edu.my/periodicals/index.php/peat/article/view/74 (Accessed: 18 July 2024).