RUSMAN, F. L. R.; ISTIKOMAH. Implementation Of An Internal Quality Assurance System At Sunan Ampel Menganti Smp : Implementasi Sitem Penjaminan Mutu Internal Di Smp Sunan Ampel Menganti. Indonesian Journal of Innovation Studies, [S. l.], v. 27, n. 3, p. 10.21070/ijins.v27i3.1983, 2026. DOI: 10.21070/ijins.v27i3.1983. Disponível em: https://ijins.umsida.ac.id/index.php/ijins/article/view/1983. Acesso em: 26 sep. 2026.