Mohd Fadhli Ahmad, Mohd Fadzil Allias, and Nurul Khairunnisa Su. 2019. “Kesan Penambahan Abu Sekam Padi Terhadap Sifat Mekanikal Batu Bata”. Politeknik & Kolej Komuniti Journal of Engineering and Technology 4 (1). Putrajaya, Malaysia:181-89. https://app.mypolycc.edu.my/journal/index.php/PMJET/article/view/264.