Sudsuansee, Thaithat, Narong Wichapa, Narong Wichapa, Amin Lawong, and Nuanchai Khotsaeng. “A Novel Hybrid Method Based on Three-Stage Extraction and DEA-CCR Models for Selecting the Optimal Conditions for Citronella Oil Extraction”. Applied Science and Engineering Progress 15, no. 4 (September 9, 2022): 5598. Accessed May 13, 2024. https://ph02.tci-thaijo.org/index.php/ijast/article/view/247337.