“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), pp. 47–58. doi:10.33019/jia.v5i1.4083.