KUSUMAH, S.; SANDRA, E.; AGUSVEN, T.; NASUTION, E. H. Analisis Semangat Kerja Kurir pada JNT Express Tanjungpinang. Surplus: Jurnal Ekonomi dan Bisnis, [S. l.], v. 3, n. 2, p. 344–351, 2025. DOI: 10.71456/sur.v3i2.1157. Disponível em: https://yptb.org/index.php/sur/article/view/1157. Acesso em: 7 oct. 2026.