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Journal Article
Riley, Shaun, Nicole Vellios, and Corne van Walbeek. "An economic analysis of the demand for cannabis: Some results from South Africa." Drugs: Education, Prevention and Policy (2019).
Sidiropoulos, Elizabeth, Anthea Jeffrey, Shaun Mackay, Rory Gallocher, Herma Forgey, and Cheryl Chipps. South Africa survey 1995/96. Johannesburg, South Africa: South African Institute of Race Relations, 1996.
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