Ludenyi, C.L. and Vomogi, E. 2020. Influence of Selected Socio-economic Factors on Cognitive Development in Pre-School Children in Sabatia Sub-County, Kenya. The International Journal of Humanities & Social Studies. 8, 9 (Sep. 2020). DOI:https://doi.org/10.24940/theijhss/2020/v8/i9/HS2009-081.