TOBING, M. T. .; PASARIBU, E. .; PURBA, N. . THE EFFECT OF LETTER CARD MEDIA ON LEARNING OUTCOMES IN ELEMENTARY LEARNING. Sensei International Journal of Education and Linguistic, [S. l.], v. 3, n. 1, p. 29–44, 2023. DOI: 10.53768/sijel.v3i1.121. Disponível em: https://sijel-journal.sensei-journal.com/jbo/article/view/121. Acesso em: 31 jul. 2026.