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Kartika W, Asrial A, Effendi-Hasibuan MH. The effectiveness of the four-step jigsaw and jigsaw learning model in improving students’ argumentation skills about salt hydrolysis concept. J.Pendidik.Kim [Internet]. 2021 Dec. 3 [cited 2025 Dec. 31];13(3):241-9. Available from: https://jurnal.unimed.ac.id/2012/index.php/jpk/article/view/29929