REFERENCES
- Cowper, S. G. & Woodward, S. F. (1961). Parasitic infections recorded at University College Hospital, Ibadan, Nigeria, Over a Three-Year Period (1957–1960). West African Medical Journal, 10, 366–383.
- Fisk, G. H. (1939). Helminthiasis in Lagos. Nigeria. Transactions of Royal Society of Tropical Medicine and Hygiene, 32, 645–649.
- Gilles, H. M. (1964). Akufo—An Environmental Study of a Nigerian Village Community. Ibadan: Ibadan University Press.
- Hinz, E. (1966). Einfach—und Mehrfachbefall mit Darmhelminthen in der Bevolkerung der Westafrikanischen Regentropen. Tropenmedizin und Parasitologic, 17, 427–442.
- Hinz, E. (1967). Vergleichende Untersuchungen über der Darm-helminthenbefal bei der Bevolkerung Sudnigeras in Verschieden Den Jahren. Tropenmedizin Und Parasitologic, 18, 162–171.
- Hinz, E. (1968). Regionale Unterschiede in Vorkommen von Helminthosen beim Menschen in Sudnigeria. Tropenmedizin Und Parasitologic, 19, 227–244.
- Nnochiri, E. (1968). Parasitic Disease and Urbanization in a Developing Country. London: Oxford University Press.
- Nwokolo, C. (1964). Paragonimiasis in Eastern Nigeria. Journal of Tropical Medicine and Hygiene, 67, 1–9.
- Nwokolo, C. (1974). Endemic Paragonimiasis in Africa. Bulletin of the World Health Organization, 50, 569–571.
- Nwosu, A. B. C. & Anya, A. O. (1980). Seasonality in human hookworm infection in an endemic area of Nigeria, and Its Relationship to Rainfall. Tropenmedizin Und Parasitologic, 31, 201–208.
- Obiamiwe, B. A. (1977). The pattern of parasitic infection in human gut at the Specialist Hospital, Benin City, Nigeria. Annals of Tropical Medicine and Parasitology, 71, 35–43.
- Okpala, I. (1956). The incidence of intestinal parasites among school children in Lagos, Nigeria. West African Medical Journal, 5, 167–170.
- Okpala, I. (1961). A survey of the incidence of intestinal parasites amongst government workers in Lagos, Nigeria. West African Medical Journal, 10, 148–157.
- Onubogu, U. V. (1978). Intestinal parasites of school children in urban and rural area of Eastern Nigeria. Zentralblatt Für Bakteriologie Und Hygiene, 242, 121–131.
- Ramsay, G. W. (1934). A study of schistosomiasis and certain other helminth infections in Northern Nigeria. West African Medical Journal 8, 207.