Mulyadi, Adi, Wawan Prahiawan, Ranthy Pancasasti, and Didit Haryadi. “Predicting Employee Performance through Extrinsic Motivation: A Conceptual Model and Empirical Validation”. Enrichment : Journal of Management 12, no. 6 (February 28, 2023): 5202-5212. Accessed June 18, 2026. https://www.enrichment.iocspublisher.org/index.php/enrichment/article/view/1195.