RONI , R. Evaluating Business Letter Writing Materials Through Peer Teaching Technique To Management Department Students Of Economics Faculty At The Tridinanti University Of Palembang. International Journal of Social Sciences and Humanities Invention, [S. l.], v. 8, n. 08, p. 6121–6134, 2020. DOI: 10.18535/ijsshi/v7i08.04. Disponível em: https://valleyinternational.net/index.php/theijsshi/article/view/2762. Acesso em: 25 nov. 2024.