“PHYSICO-CHEMICAL PROPERTIES OF RECYCLED REFINED, BLEACHED AND DEODORIZED (RBDPO) PALM OLEIN: WHICH CYCLE SHOULD THE OLEIN CONSIDERED SPOILAGE?”. Jurnal Teknologi (Sciences & Engineering) 79, no. 4 (April 27, 2017). Accessed January 28, 2025. https://journals.utm.my/jurnalteknologi/article/view/9829.