Mery Chris Isabella Saragih. Cooperative Group-Based Speech Writing Training Investigation on Student Class VI SD Pulibuah Districts Raya Kahean. IJCS [Internet]. 2022 Jun. 30 [cited 2024 May 19];1(1):99-104. Available from: https://ejournal.ipinternasional.com/index.php/ijcs/article/view/179