T. DUMRONGPHUTTIDECHA, S. THUNGMUNGMEE, W. KHOBJAI, N. WISIDSRI, and S. TECHAEOI, “ANTIOXIDANT AND FREE RADICAL SCAVENGING ACTIVITY OF HIBISCUS ACETOSELLA LEAVES EXTRACTS”, Int J App Pharm, vol. 11, no. 5, pp. 86–89, Sep. 2019.