“MAXIMIZING THE INCOME OF OIL PALM FARMERS IN BATU BETUMPANG VILLAGE PULAU BESAR DISTRICT, SOUTH BANGKA REGENCY: MAKSIMALISASI PENDAPATAN PETANI KELAPA SAWIT DI DESA BATU BETUMPANG KECAMATAN PULAU BESAR KABUPATEN BANGKA SELATAN”. 2023. Journal of Integrated Agribusiness 5 (1): 47-58. https://doi.org/10.33019/jia.v5i1.4083.