Riska Putri Y, Rusdi M, Syamsurizal S. Penerapan Model Discovery Learning dengan Penugasan Portofolio untuk Meningkatkan Kemampuan Argumentasi Siswa SMP: An Action Research Project in Implementing Discovery Learning Model with Portfolio Assignment to Improve Students’ Argumentation Competence for Junior High School Students in Indonesia. jmpmipa [Internet]. 2019Jul.30 [cited 2024Aug.25];8(2):1-10. Available from: https://online-journal.unja.ac.id/edusains/article/view/9854