Manik, Sabar, Rostina, and Normina Purba. “The Student Team Achievement Division Cooperative Learning for Students: Application of Mandarin Language”. International Journal of Linguistics, Literature and Translation 2, no. 6 (November 30, 2019): 173–180. Accessed September 26, 2025. https://al-kindipublishers.org/index.php/ijllt/article/view/493.