KEBIJAKAN IMPLEMENTASI AKREDITASI DALAM PENINGKATAN MUTU PENDIDIKAN DI MTs IBAD AR RAHMAN ISLAMIC BOARDING SCHOOL CIMANUK PANDEGLANG: Accreditation Implementation Policy in Improving the Quality of Education at Mts Ibad Ar Rahman Islamic Boarding School Cimanuk Pandeglang. Abacus: Acad. J. Math. Learn. Educ. 2021;2(01):1-20. doi:10.59605/abacus.v2i01.157