Pakdeechote, Poungrat, Upa Kukongviriyapan, and Veerapool Kukongviriyapan. “Screening for Free Radical Scavenging Activities of Extracts from Coccinia Grandis and Centella Asiatica”. Srinagarind Medical Journal 18, no. 2 (November 25, 2013): 78–84. Accessed December 6, 2022. https://li01.tci-thaijo.org/index.php/SRIMEDJ/article/view/14445.