“Determination of Carrier Parts of Some Microorganisms in Body of the American Cockroach Periplaneta Americana in Some Parts of Mosul City”. College of Basic Education Research Journal 17, no. 2 (July 1, 2021): 1778–1788. Accessed July 11, 2026. https://berj.uomosul.edu.iq/index.php/berj/article/view/38855.