CAJAMARCA-ORTIZ, M. F. Writing skills applying the spiral curriculum method for high school students. International Journal of Social Sciences and Humanities, [S. l.], v. 7, n. 1, p. 1–13, 2023. DOI: 10.53730/ijssh.v7n1.13814. Disponível em: http://www.sciencescholar.us/journal/index.php/ijssh/article/view/13814. Acesso em: 23 apr. 2026.