Hoa, Phan Van, and Ngo Thi Hien Trang. “MIND MAPS IN EFL SPEAKING CLASSES: A CASE STUDY AT UNIVERSITY OF FOREIGN LANGUAGE STUDIES THE UNIVERSITY OF DANANG”. VNU Journal of Foreign Studies, vol. 36, no. 6, Dec. 2020, doi:10.25073/2525-2445/vnufs.4637.