AMBARITA, Charles Fransiscus. PENGARUH SIKAP PROFESIONAL GURU WALI KELAS TERHADAP KEBERHASILAN PROSES PEMBELAJARAN SISWA KELAS 1 DI SD RK BUDI MURNI 6 MEDAN. JURNAL HANDAYANI PGSD FIP UNIMED, [S. l.], v. 9, n. 1, 2018. DOI: 10.24114/jh.v9i1.10516. Disponível em: http://103.242.233.34/index.php/handayani/article/view/10516. Acesso em: 31 jan. 2025.