A. Z. Mohamed, A. Afifi, Y. Sulieman, and T. Pengsakul, “SOME MICRO-ECOLOGICAL FACTORS INFLUENCING THE POPULATION DYNAMICS OF SCHISTOSOMIASIS INTERMEDIATE HOST SNAILS IN KHARTOUM STATE, SUDA”, Int. J. Res. Granthaalayah, vol. 4, no. 8, pp. 147–151, Aug. 2016.