THE ROLE OF NON-STANDARD PROBLEMS IN DEVELOPING PRIMARY SCHOOL STUDENTS’ LOGICAL THINKING (A CASE STUDY OF GRADE 4 STUDENTS). EUROPEAN INTERNATIONAL JOURNAL OF ADVANCED RESEARCH AND INNOVATIONS, [S. l.], v. 2, n. 6, p. 3–8, 2026. Disponível em: https://innojournals.my.id/index.php/eijari/article/view/84. Acesso em: 6 sep. 2026.