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Iin Indriyati. Improvement of Student Motivation and Learning Outcomes through The SETS Approach to Environmental Pollution Material at Class VII E SMP 1 Wonosari Semester 2 Academic Year 2017/2018. ideguru [Internet]. 2019Nov.1 [cited 2022Sep.26];4(2):61-8. Available from: https://jurnal-dikpora.jogjaprov.go.id/index.php/jurnalideguru/article/view/95