Karyanti. 2023. “PROLIFERATION OF OIL PALM (Elaeis Guineensis Jacq.) EMBRYOGENIC CALLUS WITH REPEATED SUBCULTURES IN LIQUID MEDIUM ”. Jurnal Bioteknologi Dan Biosains Indonesia 8 (1). Indonesia:1-13. https://ejournal.brin.go.id/JBBI/article/view/1811.