AL-Kayat, F., M. A.AL-Zuhairy, S. M. Nada, and N. S. Ahmed. “An Investigation of Giardia Duodenalis Subgenotype AI in Human and Cattle Isolates in Baghdad”. Asian Journal of Applied Sciences, vol. 2, no. 1, Feb. 2014, https://www.ajouronline.com/index.php/AJAS/article/view/677.