Ibeh, J.I, and Nnabuko J.O and Nwajimeje J. “Impact of Personal Selling and Sales Promotion Strategy on Market Performance of Selected Manufacturing Companies in Lagos State, Nigeria”. British Journal of Marketing Studies 10, no. 5 (October 21, 2022): 54-74. Accessed March 14, 2025. https://bjmsjournal.org/index.php/bjms/article/view/342.