CIA CAI CEN. The Effect of the Performance of Medan City Cleaning Department Officer on the Satisfaction of Medan Simpang Limon Market Traders. International Journal of Economics (IJEC), [S. l.], v. 1, n. 1, p. 327–330, 2022. DOI: 10.55299/ijec.v1i1.324. Disponível em: https://ejournal.ipinternasional.com/index.php/ijec/article/view/324. Acesso em: 5 may. 2024.