Hendrawati, Enda, and Muhammad Muhlisin. “The Effect of Cooperative Learning Type Terror Cards and Nightmare Cards towards the Eleventh Grade Students’ Speaking”. Journal of Languages and Language Teaching 6, no. 1 (May 23, 2018): 51–60. Accessed August 15, 2025. https://e-journal3.undikma.ac.id/index.php/jollt/article/view/813.