Le Roux, W. (2002). The challenges of change: A tracer study of San preschool children in Botswana. Bernard van Leer Foundation.
Tohutoru Kātū Chicago (17th ed.)Le Roux, Willemien. The Challenges of Change: A Tracer Study of San Preschool Children in Botswana. La Haya: Bernard van Leer Foundation, 2002.
Tohutoro MLA (9th ed.)Le Roux, Willemien. The Challenges of Change: A Tracer Study of San Preschool Children in Botswana. Bernard van Leer Foundation, 2002.
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