NIZAM BIN GURIMAN, MOHAMMAD RAHMAT AYRAN, and Hairi Osman. “Bonding Performance on Steel Bar in Concrete Containing Expanded Polystyrene (EPS) and Palm Oil Fuel Ash (POFA) by Pull Out Test With 0.6% of Water to Cement Ratio”. Progress in Engineering Application and Technology, vol. 5, no. 2, Nov. 2024, pp. 779-90, https://penerbit.uthm.edu.my/periodicals/index.php/peat/article/view/14249.