NICETTE N. GANAL; MARISSA R. GUIAB. PROBLEMS AND DIFFICULTIES ENCOUNTERED BY STUDENTS TOWARDS MASTERING LEARNING COMPETENCIES IN MATHEMATICS. Researchers World - International Refereed Social Sciences Journal, [S. l.], v. 5, n. 4, p. 25–37, 2021. Disponível em: https://www.researchersworld.com/index.php/rworld/article/view/823. Acesso em: 5 aug. 2025.