UPAYA MENINGKATKAN  AKTIVITAS SISWA MELALUI PROJECT BASED LEARNING PADA MATA PELAJARAN MATEMATIKA KELAS I SD KANISIUS PUGERAN. VARIABLE RESEARCH JOURNAL, [S. l.], v. 1, n. 02, p. 775–783, 2024. Disponível em: https://variablejournal.my.id/index.php/VRJ/article/view/110.. Acesso em: 10 jul. 2025.