TUYEN, P.; TIEN, T.; HUY, T.; HOA, N.; CHI, H.; THU, N.; DUONG, H.; PHUNG, N. Four flavonols from the seed of Hibiscus sabdariffa. Linn. growing in Binh Thuan Province. Science and Technology Development Journal, v. 22, n. 4, p. 348-351, 30 nov. 2019.