Ismarlin I. Increasing Activities and Science Learning Outcomes on Environmental Pollution Materials Through Contextual Teaching and Learning (CTL) Approaches for Class VII-A Students of MTsN 2 Aceh Barat Academic Year 2021/2022. J.LUMRA [Internet]. 2 Mei 2022 [dikutip 18 Agustus 2025];1(2):11-23. Tersedia pada: http://siakad.univamedan.ac.id/ojs/index.php/lumbung_aksara/article/view/356