WAHID A. Pengaruh Model Group Investigation dengan Metode Problem Solving Terhadap Kemampuan Berpikir Kritis Peserta Didik Kelas XI IPS SMAN 1 Bangil. JUPE [Internet]. 9Jul.2019 [cited 3Jul.2024];7(2):55-0. Available from: https://ejournal.unesa.ac.id/index.php/jupe/article/view/28981