The Internal Trade and the Problem of Infrastructure in East Africa: the Case of Kenya, Djibouti, Tanzania. The Bulletin of the Faculty of Commerce, Meiji University. 2020. 102. 3. 171-183
Awareness of Poor Farmers and Chronic Problem in Rural Kenya: -the Case of Kaimosi in Nandi Country-. Journal of International Development Studies. 2015. 24. 1. 87-99
The Impact of Multi-National Company on the Agriculture and Food System in Kenya. 2015. 97. 3. 477-492