A COMPREHENSIVE STUDY OF AGENTIC AI SYSTEMS: EXPLORING THE EVOLUTION FROM PREDICTIVE MACHINE LEARNING MODELS TO AUTONOMOUS, GOAL-DIRECTED, AND DECISION-MAKING ARTIFICIAL AGENTS IN COMPLEX ENVIRONMENTS. Journal of Integrative Science and Societal Impact, [S. l.], v. 2, n. 1, p. 91–100, 2026. DOI: 10.29121/JISSI.v2.i1.2026.37. Disponível em: https://jissi.org/jissi/article/view/37. Acesso em: 5 apr. 2026.