Mubah, H.Q., Riyanto , Y. and Roesminingsih , E. (2026) “Educational Supervision as Internal Quality Assurance Mechanism: Conceptualizing the Quality Assurance-Based Supervision Cycle (QASC) for Quality Education (SDG 4)”, Journal of Current Studies in SDGs, 2(3), p. 260. doi:10.63230/jocsis.2.3.260.