Walker, E., Elsworth, S., & Nguyễn Văn Phước. (2001). Grammar practice for pre - intermediate students. Tp.HCM: Nxb Trẻ.
Chicago Stili AlıntıWalker, Elaine., Steve Elsworth, ve Nguyễn Văn Phước. Grammar Practice for Pre - Intermediate Students. Tp.HCM: Nxb Trẻ, 2001.
MLA AlıntıWalker, Elaine., Steve Elsworth, ve Nguyễn Văn Phước. Grammar Practice for Pre - Intermediate Students. Tp.HCM: Nxb Trẻ, 2001.
Uyarı: Bu alıntı herzaman %100 doğru olmayabilir..