Bunga CN, Azizah N. Cooperative Roleplay Strategy For English Vocabulary Mastery Among Slow Learners: Strategi Bermain Peran Kooperatif Untuk Penguasaan Kosakata Bahasa Inggris Siswa Lamban Belajar. acopen [Internet]. 2026 Jul. 21 [cited 2026 Jul. 24];11(2):10.21070/acopen.11.2026.14930. Available from: https://acopen.umsida.ac.id/index.php/acopen/article/view/14930