Batuwanthudawa, S.D.T. and Nisansa, D.N. 2026. RESEARCH-DRIVEN POLICY LEADERSHIP IN SOCIAL WORK: ADVANCING EVIDENCE-BASED ADVOCACY, BEHAVIORAL HEALTH EQUITY, AND LEGISLATIVE REFORM. Journal of Social Sciences and Business. 5, 1 (Jun. 2026), 35–50. DOI:https://doi.org/10.5281/zenodo.20822675.