YUSUF, Hafsat Adenike; RINGIM, Kabiru Jinjiri; MAHDI, Fatima. Effect of Service Marketing Mix Strategy on Performance of Proprietary Patent Medicine Vendors (PPMVs); Moderating Role of Learning Competence. FUDMA Journal of Accounting and Finance Research [FUJAFR], [S. l.], v. 3, n. 2, p. 230–249, 2025. DOI: 10.33003/fujafr-2025.v3i2.201.230-249. Disponível em: https://fujafr.fudutsinma.edu.ng/index.php/fujafr/article/view/201. Acesso em: 25 mar. 2026.