“The Roles of Organic Fertiliser Made of Palm Oil Frond on Soybean under Wet Land Paddy Field Condition”. Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan 15, no. 1 (October 13, 2017): 29–34. Accessed December 5, 2025. https://journals.unihaz.ac.id/index.php/agroqua/article/view/79.