“Seasonal Variations in Levels of Heavy Metals in Muscles of Crab Sesarma Boulengeri Collected from Al-Garaf Canal at Thi Qar Province, Iraq”. University of Thi-Qar Journal of Science, vol. 1, no. 4, May 2009, pp. 42-50, https://jsci.utq.edu.iq/index.php/main/article/view/210.