Jindavutikul, Supachai, Jiraporn Burakhon, and Nonglug Bunyovimonnat. “Purification of crude glycerol by column chromatography”. Bulletin of Applied Sciences 4, no. 4 (August 1, 2015): 81–88. accessed March 7, 2026. https://ph03.tci-thaijo.org/index.php/BAS/article/view/301.