Riyadi, Aris, Ibrahim Bafadal, Burhanuddin Burhanuddin, and Agus Timan. 2023. “Instructional Leadership, Differentiated Instruction, Community of Practice, and Student Wellbeing: Based on the Perspective of the Principal Strengthening Training Policy”. Pedagogika / Pedagogy 149 (1):5-34. https://doi.org/10.15823/p.2023.149.1.