Ngapiyatun, Sri, Dinarti Payang, Robi, Humairo Aziza, wartomo, and Emi Malaysia. “Studi Evaluasi Manajemen Penerapan Teknik Pemupukan Tanaman Kelapa Sawit Menggunakan Prinsip Empat Tepat (4T) Di Perkebunan Sawit Long Mesangat: Management Evaluation Study of the Application of Oil Palm Fertilization Techniques Using Principle of Four Right (4R) in Long Mesangat Oil Plantations”. Buletin Loupe 19, no. 01 (June 29, 2023): 71–78. Accessed December 22, 2024. https://e-journal.politanisamarinda.ac.id/index.php/jurnalloupe/article/view/2418.