Nizar Ismail K, Sobri Idris M, Hussin K, Azizi Mohd Azizli K. The Microstructure of Lightweight Aggregates Made of Pulverised Fuel Ash. Malaysian J. Sci. [Internet]. 2002 Dec. 26 [cited 2024 Nov. 16];21:177-9. Available from: http://ojie.um.edu.my/index.php/MJS/article/view/8884