Desgian Malle’ Pangadongan, Rais Rachman, and Irwan Lie Keng Wong. “Pengaruh Penambahan Bubuk Gypsum Pada Tanah Lempung Terhadap Uji California Bearing Ratio (CBR)”. Paulus Civil Engineering Journal 2, no. 4 (January 23, 2024): 263–272. Accessed July 24, 2025. https://ojs.ukipaulus.ac.id/index.php/pcej/article/view/301.