Siti Mariyah, Ahmad Syukri and Badarussyamsi (2024) “Commitment of Madrasah Heads in Improving State Tsanawiyah Madrasah Services in the Kepulauan Riau”, Mutiara: Jurnal Ilmiah Multidisiplin Indonesia, 2(3), pp. 1–17. doi: 10.61404/jimi.v2i3.234.