YUNUSA, Hassan; SHEHU, Munir Mashi. Impact of Business Efficiency, Market Expansion, and Quality Services on SMEs Performance: Moderating Role of Perceived Risk in Katsina State. UMYU Journal of Business Administration and Management, [S. l.], v. 1, n. 1 & 2, p. 56–77, 2026. DOI: 10.56919/jbam.2511.004. Disponível em: https://publications.umyu.edu.ng/jbam/index.php/ujbam/article/view/6. Acesso em: 5 jul. 2026.