Kim, S.-J., M. Valan Arasu, N.A. Al-Dhabi, D.-S. Yoo, M.-H. Park, Y.-S. Shin, and S.-W. Lee. “Quantitative Determination of Triterpenoidal Saponins in Platycodi Radix and Its Variation in Different Regions of Korean Peninsula: A Herbal Plant Used As Traditional Medicine”. Asian Journal of Chemistry 25, no. 13 (July 19, 2013): 7093–7097. Accessed July 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/25_14_7.