Vitriani, Okta, and Sukiman. 2026. “The Invisible Curriculum That Shapes Character: A PRISMA-Based Systematic Review of Hidden Curriculum in Elementary Schools”. DIDAKTIKA: Jurnal Pendidikan Sekolah Dasar 9 (1):92-100. https://journal.uny.ac.id/index.php/didaktika/article/view/99520.