KHOIRINA BADRIYAH; HALIMATUS SA’DIYAH. Calibration of Scientific Educational Research Instruments Qualitative and Quantitative Approaches. Amandemen: Journal of Learning, Teaching and Educational Studies, [S. l.], v. 3, n. 1, p. 25–34, 2025. DOI: 10.61166/amd.v3i1.76. Disponível em: https://amandemen.my.id/index.php/i/article/view/76. Acesso em: 26 oct. 2025.