Umro’atin Y, Fitri AZ. Strategic Management of Non Profit Organization to Increase the Existence of Al-Mutmainnah Ponorogo Islamic Boarding School. tarbawi [Internet]. 2023 Aug. 1 [cited 2026 Jun. 24];4(2):208-3. Available from: https://jurnal.iairm-ngabar.ac.id/index.php/tarbawi/article/view/458