Jannana NS. Strategi Kepemimpinan: Quality Continuous Improvement SMP Islam Prestasi Al Mubtadi-Ien Bantul Yogyakarta . njpi [Internet]. 2021 May 31 [cited 2026 Feb. 3];1(2):367-84. Available from: http://journal.rumahindonesia.org/index.php/njpi/article/view/31