Hidayah, M.N., Hardiyatmo, H.C. and Adi, A.D. 2023. Study Of Various Types Of Pvd And Ph.D. Joints On Vertical Drainage Performance. Jurnal Indonesia Sosial Teknologi. 4, 10 (Oct. 2023), 1694–1702. DOI:https://doi.org/10.59141/jist.v4i10.750.