GARRARD, T.: Gold of Africa, Jewellery and Ornaments from Ghana, Côte d'Ivoire, Mali and Senegal, Munich, 1989; Willet, F.: Ifé Une Civilisation Africaine, 1971; McLeod, M.: The Asante, London, 1981; Cole, H. and Ross, D.: The Arts Of Ghana, Los Angeles, 1977; and eleven others of similar interest (15)