Macawile, M. C., and J. Auresenia. “Utilization of Supercritical Carbon Dioxide and Co-Solvent N-Hexane to Optimize Oil Extraction from Gliricidia Sepium Seeds for Biodiesel Production”. Applied Science and Engineering Progress, vol. 15, no. 1, Oct. 2021, doi:10.14416/j.asep.2021.09.003.