Fahrurrozi, F., Sudjatmiko, S., Muktamar, Z., Setyowati, N., and Chozin, M. 2022. “Use of Tithonia diversifolia leaves for liquid organic fertilizer”. International Journal of Agricultural Technology 18 (2):503-10. https://li04.tci-thaijo.org/index.php/IJAT/article/view/6902.