Arifianto, A. and Budianto, A. (2019) “Utilization of Sludge Waste as Fertilizer for Chili Plants: Observed from Technical, Economical Aspects and Farmers’ Perceptions”,
International Journal of Environment, Agriculture and Biotechnology, 4(4). Available at:
https://journal-repository.com/index.php/ijeab/article/view/313 (Accessed: 18 April 2025).