Sadiku, Matthew N. O., Uwakwe C. Chukwu, and Janet O. Sadiku. “Gamification in Ecommerce”. International Journal of Human Computing Studies 5, no. 5 (May 16, 2023): 4-11. Accessed May 5, 2024. https://journals.researchparks.org/index.php/IJHCS/article/view/4376.