PERDANA JOSUA. The Influence of Choice of Study Program Concentration in Undergraduate Management and Self-Efficacy on the Study Period of 2020 Students of Undergraduate Management, FEB, Riau University. International Journal of Economics and Management Research, [S. l.], v. 3, n. 3, p. 90–98, 2024. DOI: 10.55606/ijemr.v3i3.365. Disponível em: https://ijemr.asia/index.php/ijemr/article/view/365. Acesso em: 14 may. 2025.