Farni, Yulfita, Retno Suntari, and Sugeng Prijono. “Utilization of Tithonia Diversifolia and Sugarcane Leaves to Improve Soil Properties and Plant Growth on a Sandy Soil of Malang, East Java”. Journal of Degraded and Mining Lands Management 9, no. 2 (January 1, 2022): 3227–3236. Accessed October 6, 2024. https://jdmlm.ub.ac.id/index.php/jdmlm/article/view/1002.