Preston, R. (2007). Writing activities: Vui học viết. Tp. Hồ Chí Minh: Tổng hợp Tp. Hồ Chí Minh.
শিকাগো স্টাইলে সাইটেশনPreston, Roy. Writing Activities: Vui Học Viết. Tp. Hồ Chí Minh: Tổng hợp Tp. Hồ Chí Minh, 2007.
এমএলএ সাইটেশনPreston, Roy. Writing Activities: Vui Học Viết. Tp. Hồ Chí Minh: Tổng hợp Tp. Hồ Chí Minh, 2007.
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