“Studi Korelasi Koefisien Permeabilitas Vertikal dan Permeabilitas Horizontal pada Tanah Lempung”, SEMDI-UNAYA, vol. 3, no. 1, pp. 227–237, Dec. 2019, Accessed: Oct. 17, 2026. Available: https://jurnal.abulyatama.ac.id/index.php/semdiunaya/article/view/451