SIDABUTAR, Deaby Nathalia; FIRMANSYAH, Dani. KESALAHAN SISWA DALAM MENYELESAIKAN SOAL CERITA MATEMATIKA MENURUT PROSEDUR NEWMAN. Prosiding Sesiomadika, [S. l.], v. 2, n. 1d, 2019. Disponível em: https://journal.unsika.ac.id/index.php/sesiomadika/article/view/2575. Acesso em: 5 des. 2025.