Permeiningsih 2026. Managerial Certification for Raudhatul Athfal Principals as an Intervention Strategy to Increase Credibility and Public Enrollment Rates. JURNAL ILMIAH GEMA PERENCANA. 4, 3 (Apr. 2026), 1971–1990. DOI:https://doi.org/10.61860/jigp.v4i3.361.