Phrompittayarat, W., Putalun, W., Tanaka, H., Jetiyanon, K., Wittaya-areekul, S. and Ingkaninan, K. (2007) “Comparison of Various Extraction Methods of Bacopa monnieri”, Asian Health, Science and Technology Reports, 15(1), pp. 29–34. available at: https://ph03.tci-thaijo.org/index.php/ahstr/article/view/2433 (accessed: 30 August 2026).