Bakar, M.K.S. (2020) “Utilisation of Mussel Shell Ash and Palm Oil Leaves Ash as Admixture in Concrete”, International Journal of Integrated Engineering, 12(8), pp. 310–317. Available at: https://journal.uthm.edu.my/index.php/ijie/article/view/5322 (Accessed: 7 August 2026).