“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”, JIA, vol. 5, no. 1, pp. 47–58, Apr. 2023, doi: 10.33019/jia.v5i1.4083.