Hui, Duan, Cai Xing, Lu Lei, Li Fadi, and Ru Yingjun. “Study of Tocopherols Homologue in Needle of Pinus Tabulaeformis Carr by High Performance Liquid Chromatography”. Asian Journal of Chemistry 23, no. 8 (May 5, 2011): 3397–3400. Accessed July 23, 2024. https://asianpubs.org/index.php/ajchem/article/view/10631.