Perceived Usefulness, Ease of Use, Transaction Security and Financial Performance of Micro-Retailers in Onitsha Main Market: An Extended Tam Approach. International Journal of Management, Policy and Administrative Studies (IJMPAS), [S. l.], v. 1, n. 5, p. 28–41, 2026. Disponível em: https://ijmpas.com/journal/article/view/81.. Acesso em: 30 oct. 2026.