Kusumah, Surya, Evita Sandra, Tubel Agusven, and Ersa Herlistina Nasution. 2025. “Analisis Semangat Kerja Kurir Pada JNT Express Tanjungpinang”. Surplus: Jurnal Ekonomi Dan Bisnis 3 (2):344-51. https://doi.org/10.71456/sur.v3i2.1157.