Kim, N. (2008). Revolish toefl iBT Prep: Four skills reading, listening, speaking, writing. Thành phố Hồ Chí Minh: Trẻ.
শিকাগো স্টাইলে সাইটেশনKim, Nathan. Revolish Toefl IBT Prep: Four Skills Reading, Listening, Speaking, Writing. Thành phố Hồ Chí Minh: Trẻ, 2008.
এমএলএ সাইটেশনKim, Nathan. Revolish Toefl IBT Prep: Four Skills Reading, Listening, Speaking, Writing. Thành phố Hồ Chí Minh: Trẻ, 2008.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.