Kibet A. Ng'etich. 8 - Book Reviews: Thomas R. Black. Evaluating Social Science Research: An Introduction, London, SAGE Publications, 1993, p. 183.: by Kibet A. Ng’etich. AD [Internet]. 1995 Aug. 5 [cited 2025 Mar. 11];20(3). Available from: https://journals.codesria.org/index.php/ad/article/view/2545