PRATAMA, A. A.; KARTIKAWATI, R.; PRIYANTO, E. The Effectiveness of the Problem Based Learning Model in Forming Students’ Thinking Skills in the Material of Cooperation and Mutual Cooperation. Proceedings Series on Social Sciences & Humanities, [S. l.], v. 18, p. 13–18, 2024. DOI: 10.30595/pssh.v18i.1219. Disponível em: https://conferenceproceedings.ump.ac.id/pssh/article/view/1219. Acesso em: 30 dec. 2024.