ZEBUA, S.; SUTIKNO. Implementation of Cooperative Learning Model Towards Improving Writing Competence Student Argumentation Discourse Text Class XI State Vocational School 1 Lolofitu West Nias. International Journal of Educational Research Excellence (IJERE), [S. l.], v. 4, n. 2, p. 570–580, 2025. DOI: 10.55299/ijere.v4i2.1503. Disponível em: https://ejournal.ipinternasional.com/index.php/ijere/article/view/1503. Acesso em: 7 dec. 2025.