1. Rainmaking: a thousand year-old ritual;Aukema;South African Archaeological Bulletin,1989
2. The Late Iron Age sequence in the Marico and early Tswana history;Boeyens;South African Archaeological Bulletin,2003
3. The Emergence of Social and Political Complexity in the Shashi-Limpopo Valley of Southern Africa, AD 900 to 1300. Ethnicity, Class, and Polity;Calabrese,2007
4. Archaeological sites at Letsibogo Dam;Campbell;Botswana Notes and Records,1996