EFFECTIVENESS OF HOMOGENEOUS GROUPING BASED ON STUDENT CHARACTERISTICS IN THE ENGLISH LEARNING PROCESS IN GRADE 7 AT SMPN 3 SIKUR. Sindoro [Internet]. 2025 Dec. 13 [cited 2026 Oct. 2];18(2):1571-80. Available from: https://cibjournal.com/index.php/sindoro/article/view/3667