Dillasamola, D.; Wahyuni, F. S.; Rita, R. S.; Aldi, Y. Stigmasterol Isolated from Sungkai (<i>Peronema canescens< i> Jack) Leaves Induced Natural Killer Cells in SARS-CoV-2 Antigen Challenged Albino Mice: Http: www.doi.org 10.26538 Tjnpr V7i12.8. TJNPR 2023, 7, 5420-5423.