Nizar Ismail, K., Sobri Idris, M., Hussin, K. and Azizi Mohd Azizli, K. (2002) “The Microstructure of Lightweight Aggregates Made of Pulverised Fuel Ash”, Malaysian Journal of Science, 21, pp. 177–179. Available at: https://mjes.um.edu.my/index.php/MJS/article/view/8884 (Accessed: 24 December 2024).