Trịnh, D., Trương, S., Hứa, B., & Trần, P. (2023). Isolation and establishment of Physcion as a chemical reference substance from radix Polygonum multiflorum thunb. Science & Technology Development Journal: Natural Sciences, 7(2), 2599-2607. https://doi.org/https://doi.org/10.32508/stdjns.v7i2.1235