1. The promotion and development of traditional medicine;WHO,1978
2. Traditional medicine and health care coverage,1983
3. The best of both worlds: bringing traditional medicine up to date;Akerele;Soc. Sci. Med.,1987
4. Complementary medicine;Fulder;The Courier,1987
5. Healer, witch, prophet or modern health-worker? The changing role of Ngaka ya Setswana;Ingstad,1989