Kirana AS, Rahman NF, Suparmi. Köhler’s Theory and Inquiry Learning: Literature Review of 21st Century Theoretical Implications. Journal of Smart Pedagogy and Education [Internet]. 2026 Jul. 27 [cited 2026 Aug. 24];2(1):1-18. Available from: http://jurnal.smartpedia.co.id/index.php/spedu/article/view/435