Abdullah, A. et al. 2018. Characterization of Oil Extracted from Red Pitaya (Hylocereus polyrhizus) Seeds using Supercritical Fluid Extraction. International Journal of Engineering & Technology. 7, 3.7 (Jul. 2018), 407–410. DOI:https://doi.org/10.14419/ijet.v7i3.7.18891.