Witri E, Ngatijo N, Effendi-Hasibuan MH. Development of electronic student worksheets based on toulmin argumentation patterns to improve argumentation skills in basic acid materials. J.Pendidik.Kim [Internet]. 2020 Dec. 1 [cited 2025 Jul. 3];12(3):116-23. Available from: https://jurnal.unimed.ac.id/2012/index.php/jpk/article/view/21160