N. D. . Djata Ndua and D. . Bria, “Dry Land Entisol Chemical Properties and Pak Choi Response Upon Application of Tofu Waste LOF and Biochar”, J. Ilmu. Pertan. Indones., vol. 30, no. 3, pp. 605–611, Jun. 2025, doi: 10.18343/jipi.30.3.605.