RESTIKA RAHMADANI; SARI HERLINA. LEARNING TOOL DEVELOPMENT WITH THE PROBLEM BASED LEARNING (PBL) MODEL-ORIENTED MATHEMATICAL CRITICAL THINKING ABILITY. Mathematics Research and Education Journal, [S. l.], v. 4, n. 2, p. 16–22, 2020. DOI: 10.25299/mrej.2020.vol4(2).9287. Disponível em: https://journal.uir.ac.id/index.php/JPM/article/view/9287. Acesso em: 21 jul. 2026.