K. Aziz, B., A. Abdullah, M. and J. Jubrael, K. (2011) “Acid Activation and Bleaching Capacity of Some Clays for Decolourizing Used Oils”, Asian Journal of Chemistry, 23(6), pp. 2449–2455. Available at: https://asianpubs.org/index.php/ajchem/article/view/10460 (Accessed: 23 July 2024).