Siregar, Sri Rahmadhani. “Collaborative Learning and Summarizing Strategy in Teaching Writing During COVID-19 Pandemic ”. J-SHMIC : Journal of English for Academic 10, no. 1 (February 28, 2023): 73–82. Accessed May 3, 2024. https://journal.uir.ac.id/index.php/jshmic/article/view/11010.