Arifin A, S.S., M.Pd.K. DS, Arifudin O. The Relationship Between Classroom Environment, Teacher Professional Development, and Student Academic Performance in Secondary Education. IETI [Internet]. 2024Mar.5 [cited 2025Jul.23];2(2):151 - 159. Available from: https://ijble.com/index.php/ieti/article/view/467