Sarifudin. “Oil Palm Farmers’ Interest in Zakat: A Study of the Determinants of Agricultural Zakat in Tulang Bawang Regency, Lampung”. Journal of Research in Economics and Social Science, vol. 1, no. 1, Mar. 2025, pp. 29-39, https://jurnal.cendanaofficial.com/index.php/jers/article/view/366.