HARDIANTO HARDIANTO; USWATUN HASANAH; RAHMAD SEMBIRING. The Polarization of Population Growth on the Development of Micro, Small, and Medium Enterprises in the Medan Tuntungan District . Harmoni Economics: International Journal of Economics and Accounting, [S. l.], v. 3, n. 1, p. 26–33, 2026. DOI: 10.70062/harmonieconomics.v3i1.457. Disponível em: https://economics.ifrel.org/index.php/HarmoniEconomics/article/view/457. Acesso em: 3 mar. 2026.