M. S. Azad, M. M. Hossain, M. K. Ahmed, M. S. Kabir, and M. F. Rahman. “Effect of Nematode Parasite (Procamallanus Heteropneustus) on the Freshwater Catfish Singhi (Heteropneustes Fossitis)”. Sindh University Research Journal - SURJ (Science Series), vol. 38, no. 2, Dec. 2006, https://sujo.usindh.edu.pk/index.php/SURJ/article/view/6796.