Nguyen, Ngoc Tran, et al. “SIMULTANEOUS DETERMINATION OF RUTIN AND LUTEOLIN IN SOLUBLE TEA DIETARY SUPPLEMENTS BY HPLC-PDA”. Cantho Journal of Medicine and Pharmacy, no. 43, Oct. 2023, pp. 139-46, https://tapchi.ctump.edu.vn/index.php/ctump/article/view/1092.