Noorul Hudai Binti Abdullah, Norhayati Ngadiman, Mohd Erwan Sanik, Hazri Mokhtar. Civil Engineering Materials (Laboratory) Version 2022. Penerbit UTHM; 2022. Accessed March 12, 2026. https://publisher.uthm.edu.my/omp/index.php/penerbituthm/catalog/book/295