NAINGGOLAN, T.; SUTIKNO. Development of Collaborative Learning to Improve Student’s Writing Skills Class X SMA Negeri 1 Dolok Merawan Academic Year 2022-2023. International Journal of Social Sciences and Humanities Invention, [S. l.], v. 10, n. 03, p. 7805–7809, 2023. DOI: 10.18535/ijsshi/v10i03.07. Disponível em: http://valleyinternational.net/index.php/theijsshi/article/view/3888. Acesso em: 22 jul. 2024.