OMAR, NUR AISYAH NABILAH, CHEE MING C, and Noor Khazanah A R. “A The Formulation of Non-Fired Bricks With Na-Based As Stabilisers and Sand As Additive”. Progress in Engineering Application and Technology 4, no. 1 (May 25, 2023): 925–933. Accessed July 18, 2024. https://penerbit.uthm.edu.my/periodicals/index.php/peat/article/view/10635.