CHRISTY AGATA MAKUPIOLA; RACHMAN, Rais; WONG, Irwan Lie Keng. Pengaruh Penambahan Abu Cangkang Kelapa Sawit pada TanahLempung dengan Uji Direct Shear. Paulus Civil Engineering Journal, Makassar, I.D., v. 3, n. 2, p. 253–256, 2024. DOI: 10.52722/jkcc5n62. Disponível em: https://ojs.ukipaulus.ac.id/index.php/pcej/article/view/273. Acesso em: 24 jul. 2025.