Shkhaier, S.L. et al. 2020. Investigating the Efficiency of Simple Aqueous Extract of Nigella Sativa Activity Against Serratia Marcescens Bactria. Al-Mustansiriyah Journal of Science. 31, 3 (Aug. 2020), 39–45. DOI:https://doi.org/10.23851/mjs.v31i3.859.