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Martha Trisnawati Siagian, Slamet Lestari. The Implementation of Professional Learning Community at Mutiara Harapan Junior High School and Global Andalan Junior High School, Riau. IJETR [Internet]. 2025 Mar. 19 [cited 2026 Aug. 7];3(1):187-98. Available from: https://jurnalinternasional.com/index.php/ijetr/article/view/407