Hidayah, Meylani Nurul, Hary Christady Hardiyatmo, and Agus Darmawan Adi. “Study Of Various Types Of Pvd And Ph.D. Joints On Vertical Drainage Performance”. Jurnal Indonesia Sosial Teknologi 4, no. 10 (October 25, 2023): 1694–1702. Accessed September 19, 2024. https://jist.publikasiindonesia.id/index.php/jist/article/view/750.