Sakulpanich, Aurapa, and Wandee Gritsanapan. “Extraction Method for High Content of Anthraquinones from Cassia fistula Pods”. Journal of Health Research 22, no. 4 (November 16, 2018): 167–172. accessed September 21, 2026. https://he01.tci-thaijo.org/index.php/jhealthres/article/view/155675.