INCREASING HIGHER-ORDER THINKING SKILL OF ELEMENTARY SCHOOL STUDENTS THROUGH PROBLEM-BASED LEARNING. Primary: Jurnal Pendidikan Guru Sekolah Dasar, [S. l.], v. 9, n. 2, p. 202–212, 2020. DOI: 10.33578/jpfkip.v9i2.7881. Disponível em: https://primary.ejournal.unri.ac.id/index.php/JPFKIP/article/view/890. Acesso em: 20 dec. 2025.