samiu, L. diu. “The Effect of Human Capital Development on Employees’ In-Role Performance at the Department of Population and Civil Registration of Gorontalo City”. Islamic Business and Management Journal, vol. 8, no. 2, Dec. 2025, pp. 81-90, https://ejournal.unida.gontor.ac.id/index.php/IBMJ/article/view/15691.