Nnachi, Nwaonuma, Chidinma Onwe, and Beatrice Ewa. “Empirical Validation of Hicks and Slustky’s Theory of Income-Substitution Effect on Wine Consumption in a Recession Period”. Nigerian Journal of Social Psychology 7, no. 1 (June 16, 2024). Accessed December 22, 2024. https://nigerianjsp.com/index.php/NJSP/article/view/136.