1. Memorandum;WHO,1976
2. Hydatidosis: a global problem of increasing importance;Matossian;Bull. Wld. Hlth. Org.,1977
3. Taeniasis and Cysticercosis (Taenia saginata);Pawlowski,1972
4. A consideration of the economic impact of schistosomiasls;Wright;Bull. Wld. Hlth. Org.,1972
5. Schistosomiasis Control;WHO;Wld. Hlth. Org. techn. Rep. Ser.,1973