Huttaya Chahom, and Chitsuda Chaisakdanugull. “Effects of ethanol concentration, extraction time and ultrasound-assisted extraction on the recovery of curcuminoid from turmeric (Curcuma longa L.) rhizome”. Journal of Current Science and Technology 7, no. 1 (February 18, 2023): 41–48. accessed April 19, 2025. https://ph04.tci-thaijo.org/index.php/JCST/article/view/523.