Aziza, H. . (2023) “Analisis Efisiensi Penggunaan Pupuk NPK, Janjang Kosong Kelapa Sawit dan Limbah Cair terhadap Hasil Produksi Tanaman Kelapa Sawit: Analysis of Efficiency of Using NPK Fertilizer, Empty Palm Oil Bunches and Liquid Waste on Oil Palm Production”, Buletin Loupe, 19(02), pp. 147–155. doi: 10.51967/buletinloupe.v19i02.2914.