Qureshi, Abdul Sami, Shakeel Ahmed Soomro, and Nafees Ahmed Memon. “Quality Assurance in Testing of Highway Materials in Pakistan”. International Journal of Sustainable Construction Engineering and Technology 11, no. 4 (February 2, 2021): 99–108. Accessed July 1, 2022. https://publisher.uthm.edu.my/ojs/index.php/IJSCET/article/view/8085.