Phan, T.-T. ., H.-K. . Le, T.-D. . Ngo Thi, H.-L. . Ngo, K.-T. . Tran, and T.-Q. . Ton. “Chemical Constituents of the Methanol Extract of Hibiscus Sabdariffa (Linn) Seeds”. HPU2 Journal of Science: Natural Sciences and Technology, vol. 1, no. 2, Dec. 2022, pp. 76-80, doi:10.56764/hpu2.jos.2022.2.1.76-80.