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 2026 Apr. 23];13(3):241-9. Available from: https://jurnal.unimed.ac.id/2012/index.php/jpk/article/view/29929