Devnita, Rina. “Melanic and Fulvic Andisols in Volcanic Soils Derived from Some Volcanoes in West Java”. Indonesian Journal on Geoscience 7, no. 4 (December 28, 2012): 227–240. Accessed February 6, 2025. https://ijog.geologi.esdm.go.id/index.php/IJOG/article/view/149.