I. O. Abereijo, S. A. Adegbite, M. O. Ilori, A. A. Adeniyi, and H. Aderemi, “Technological Innovation Sources and Institutional Supports for Manufacturing Small and Medium Enterprises in Nigeria”, J.Technol. Manag. Innov., vol. 4, no. 2, pp. 82–89, Jul. 2009.