Ngapiyatun, S. (2023) “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(01), pp. 71–78. doi: 10.51967/buletinloupe.v19i01.2418.