Chao, Li-Wei, Helena Szrek, Karl Peltzer, Shandir Ramlagan, Peter Fleming, Rui Leite, Jesswill Magerman, Godfrey B. Ngwenya, Nuno Sousa Pereira and Jere Behrman (2012); “A Comparison of EPI Sampling, Probability Sampling, and Compact Segment Sampling Methods for Micro and Small Enterprises“, Journal of Development Economics,  98(1), pp. 94-107.