MERY CHRIS ISABELLA SARAGIH. Cooperative Group-Based Speech Writing Training Investigation on Student Class VI SD Pulibuah Districts Raya Kahean. IJCS: International Journal of Community Service, [S. l.], v. 1, n. 1, p. 99–104, 2022. DOI: 10.55299/ijcs.v1i1.179. Disponível em: https://ejournal.ipinternasional.com/index.php/ijcs/article/view/179. Acesso em: 19 may. 2024.