P, S., N.A, K. and Ibrahim, S. (2006) “The Effects of Various Parameters on Cr (VI) Adsorption by Raw Rice Husk”, Malaysian Journal of Science, 25(1), pp. 23–29. Available at: http://mjs.um.edu.my/index.php/MJS/article/view/8159 (Accessed: 18 May 2024).