Hardianto, Asep. “COOPERATIVE LEARNING METHOD; HOW IT DOES INFLUENCE SPEAKING SKILL AT THE TERTIARY LEVEL?”. Edukasi Lingua Sastra 16, no. 2 (October 20, 2018): 106–115. Accessed April 29, 2024. https://jurnal.umko.ac.id/index.php/elsa/article/view/99.