Hutabarat IS, Hutabarat SV, Siregar MY, Zelani DI, Suganda HA. The Role of Human Capital Investment In Economic Growth: Evidence From Cross-Country And Regional Studies. Mantik [Internet]. 2026Feb.28 [cited 2026May31];9(4):1254-60. Available from: https://iocscience.org/ejournal/index.php/mantik/article/view/6921