Fakih, T.M. et al. 2021. In Silico Activity Identification of Cyclo Peptide Alkaloids from Zizyphus Spina-Christi Species Against Sars-Cov-2 Main Protease. Jurnal Biodjati. 6, 1 (Jun. 2021), 71–81. DOI:https://doi.org/10.15575/biodjati.v6i1.10603.