Nguyen, Tuong Van, and Vinh Dinh. “Isolation of Kaempferol from Vietnamese Ginkgo Biloba Leaves by Preparative Column Chromatography”. Asian Journal of Chemistry 32, no. 3 (January 31, 2020): 515–518. Accessed November 24, 2024. https://asianpubs.org/index.php/ajchem/article/view/32_3_6.