(1)
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 2019, 22, 348-351.