Afriliana, Hasanah E, Zuhaery M. Principal Strategies for Teacher Professional Development at TK IT Al Ittihad Pekanbaru. j. vokatek [Internet]. 2026 Aug. 18 [cited 2026 Aug. 21];4(2):126-47. Available from: https://journal.diginus.id/VOKATEK/article/view/1674