Tác giả : Le Thi Bach (Nguyen Trong Tuan; Lien Thao Van; Tran Khanh Tien; Doan Minh Trung; Dang Trung Hieu; Truong Huynh Kim Ngoc; Quach Thi Hong Dung; Pham Thi Kim Phuong)
Tác giả : Le Thi Bach (Nguyen Trong Tuan; Quach Thi Hong Dung; Truong Huynh Kim Ngoc; Bui Thi Buu Hue; Le Tien Dung; Truong Quynh Nhu; Nguyen Thanh Phuong; Nguyen Minh Duy)
