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Kartika, W., Asrial, A. and Effendi-Hasibuan, M. H. (2021) “The effectiveness of the four-step jigsaw and jigsaw learning model in improving students’ argumentation skills about salt hydrolysis concept”, Jurnal Pendidikan Kimia, 13(3), pp. 241–249. doi: 10.24114/jpkim.v13i3.29929.