en Modeling And Advancing The JDâ€“R Framework In Primary Healthcare: A SEM-PLS Analysis Of Personal Resources, Work Engagement, And Health Worker Performance In Southeast Sulawesi, Indonesia Aims: Primary health care requires personnel with strong psychological resources to maintain optimal performance. Grounded in the Job Demandsâ€“Resources model, this study examines the mediating role of work engagement in the relationship between personal resourcesâ€”self-efficacy, resilience, and optimismâ€”and healthcare professionalsâ€™ performance. Materials and Methods: This study employed an explanatory cross-sectional design. Data were collected from 292 primary healthcare professionals using a Likert-scale questionnaire and proportional stratified random sampling. Structural relationships and mediation effects were analysed using Structural Equation Modelingâ€“Partial Least Squares (SEM-PLS) with SmartPLS 4, assessing both measurement and structural models. Finding: Personal resources significantly influenced work engagement, with optimism (Î² = 0.430), self-efficacy (Î² = 0.318), and resilience (Î² = 0.161) showing positive effects. Work engagement had a strong and significant effect on performance (Î² = 0.699). Direct effects of optimism and resilience on performance were not significant. However, mediation analysis revealed significant indirect effects of optimism (Î² = 0.301), self-efficacy (Î² = 0.222), and resilience (Î² = 0.113) on performance through work engagement. Conclusion: The findings indicate that personal resources primarily enhance performance through work engagement. Strengthening psychological resources and fostering supportive work environments are essential strategies for improving performance in primary health care settings. Personal resources,self-efficacy,resilience,optimism,performance of health workers,health centers,SEM-PLS 1001 1008 http://daneshafarand.org/browse.php?a_code=A-10-91431-2&slc_lang=en&sid=4