T. Al-Rassam, Zeyad, Mahmood A. Al-Tobje, and Adeaba Y. Shareef. 2008. “The Study of Inhibitory Effect of Propolis on Some Gram Positive and Gram Negative Bacteria”. Rafidain Journal of Science 19 (4):51-58. https://doi.org/10.33899/rjs.2008.41569.