HUONG, Ta Thi Thanh. Using Mind Maps to Improve 4th Graders’ Oral Performance in “Speak Out” Lessons: Action Research at a Primary School in Hanoi. VNU Journal of Science: Education Research, [S.l.], july 2024. ISSN 2588-1159. Available at: <https://js.vnu.edu.vn/ER/article/view/4897>. Date accessed: 24 nov. 2024. doi: https://doi.org/10.25073/2588-1159/vnuer.4897.