Source: João Morais and Teresa Cruz e Silva, "A Tentative Construction of a Model: Modern Traditional Pottery from the Coastal Plain, Gaza province," in Prehistoric Research in Moçambique: The Earlier Prehistoric Research in "Portuguese East Africa," the Present Projects, Investigation Plans and Proposals, ed. J. M. Morais (Maputo, 1976); Menno Klapwijk, "A Preliminary Report on Pottery from the North-Eastern Transvaal, South Africa," South African Archaeological Bulletin 29 (1974): 19-23.