1.
Fatriani E, Sukidjo S. Efektivitas metode problem based learning ditinjau dari kemampuan berpikir kritis dan sikap sosial siswa. SOCIA [Internet]. 2018 Jan. 31 [cited 2025 May 7];15(1):11-26. Available from: https://journal.uny.ac.id/index.php/sosia/article/view/20089