Earkul, Sapasiri, and Nawadee Srisiriwat. 2023. “Virgin Coconut Oil Production by Centrifugation Method Integrated Extraction with Solar Thermal Energy”. Journal of Advanced Development in Engineering and Science 6 (17). Babgkok, Thailand:31-45. https://ph03.tci-thaijo.org/index.php/pitjournal/article/view/862.