Hanapi Idham, Ria Kurniawaty. Designing an Internal Quality Assurance System (SPMI) for the Accreditation of an Islamic-Value-Based Educational Institution at SMP Nahdlatul Wathan Bintan. responsive [Internet]. 2026 Oct. 2 [cited 2026 Oct. 2];2(3):112-20. Available from: https://responsive.hellowpustaka.id/index.php/i/article/view/25