Ayed، R. E. (1983). Susceptibility of Jordanian Bulinus Truncatus Snails to Infection With Schistosoma Haematoblium Form Egypt with an Electrophoretic Comparison of This Snail With Three Other Population (رسالة ماجستير غير منشورة). الجامعة الاردنية، عمان. مسترجع من http://search.mandumah.com/Record/550373
Ayed، Rوa Essa. "Susceptibility of Jordanian Bulinus Truncatus Snails to Infection With Schistosoma Haematoblium Form Egypt With an Electrophoretic Comparison of This Snail With Three Other Population" رسالة ماجستير. الجامعة الاردنية، عمان، 1983. مسترجع من http://search.mandumah.com/Record/550373