Oko, Augustine Egwu, and Innocent N Kalu. “Marketing Performance Measurement Management: Study of Selected Small and Medium Scale Businesses in Nigeria”. Advances in Social Sciences Research Journal 1, no. 4 (July 28, 2014): 43–66. Accessed November 22, 2024. https://journals.scholarpublishing.org/index.php/ASSRJ/article/view/185.