Guganeswary Vellayan¹, Charanjit Kaur Swaran Singh, Ong Eng Tek, Melor Md Yunus, Tarsame Singh Masa Singh, Dodi Mulyadi, “A REVIEW OF STUDIES ON COOPERATIVE LEARNING STRATEGY TO IMPROVE ESL STUDENTS’ SPEAKING SKILLS”, J Arch.Egyptol, vol. 17, no. 6, pp. 12021-12030, Nov. 2020.