Istiqomah, I. and Nasution, Y. 2025. Leveraging Psychological Capital as a Personal Resource to Enhance Happiness at Work and Drive Extra-Role Behaviors. Indonesian Interdisciplinary Journal of Sharia Economics (IIJSE). 8, 3 (Oct. 2025), 12446-12461. DOI:https://doi.org/10.31538/iijse.v8i3.7295.