“In-Vitro Screening of DPPH Free Radical Scavenging Activity of Freeze-Dried Extract of Crateva Adansonii DC. Stem Bark Decoction (Lunuwarana Pothu Kalan 12 Kashaya): Nallaperuma D.M.* and Jayasiri A.P.A.”. Sri Lanka Journal of Indigenous Medicine (SLJIM) , vol. 9, no. 1, July 2024, pp. 820-4, http://sljim.iim.cmb.ac.lk/journal/index.php/sljim/article/view/143.