Gardner, Roy (1974). "Some Sociological and Physiological Factors Affecting the Growth of Serowe". Botswana Notes and Records6. pp. 77–88. ISSN0525-5090. JSTOR40959211.
Gardner, Roy (1974). "Some Sociological and Physiological Factors Affecting the Growth of Serowe". Botswana Notes and Records6. pp. 77–88. ISSN0525-5090. JSTOR40959211.