Hutabarat, I.S., Hutabarat, S.V. , Siregar, M.Y., Zelani, D.I. and Suganda, H.A. 2026. The Role of Human Capital Investment In Economic Growth: Evidence From Cross-Country And Regional Studies. Jurnal Mantik. 9, 4 (Feb. 2026), 1254-1260. DOI:https://doi.org/10.35335/mantik.v9i4.6921.