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Journal Article
Chelwa, Grieve, and Steven F Koch. "The effect of tobacco expenditure on expenditure shares in South African households: A genetic matching approach." PLOS ONE 14, no. 9 (2019): 1-16.
van Walbeek, Corné, and Grieve Chelwa. Using price-based interventions to reduce abusive drinking in the Western Cape Province. 2019.
Showing 1-2 of 2