Rusman FLR, Istikomah. Implementation Of An Internal Quality Assurance System At Sunan Ampel Menganti Smp : Implementasi Sitem Penjaminan Mutu Internal Di Smp Sunan Ampel Menganti. ijins [Internet]. 2026 Sep. 11 [cited 2026 Sep. 26];27(3):10.21070/ijins.v27i3.1983. Available from: https://ijins.umsida.ac.id/index.php/ijins/article/view/1983