Risso, Mario, and Andrea Paesano. “Retail and Gamification for a New Customer Experience in Omnichannel Environment”. International Journal of Economic Behavior (IJEB) 11, no. 1 (December 30, 2021): 109–128. Accessed January 14, 2026. https://journals.uniurb.it/index.php/ijmeb/article/view/3238.