Badger, I. (2014). Listening: B2 + Upper intermediate. T.P. Hồ Chí Minh: Tổng hợp T.P. Hồ Chí Minh; Công ty TNHH Nhân Trí Việt.
শিকাগো স্টাইলে সাইটেশনBadger, Ian. Listening: B2 + Upper Intermediate. T.P. Hồ Chí Minh: Tổng hợp T.P. Hồ Chí Minh; Công ty TNHH Nhân Trí Việt, 2014.
এমএলএ সাইটেশনBadger, Ian. Listening: B2 + Upper Intermediate. T.P. Hồ Chí Minh: Tổng hợp T.P. Hồ Chí Minh; Công ty TNHH Nhân Trí Việt, 2014.
সতর্কবাণী: সাইটেশন সবসময় 100% নির্ভুল হতে পারে না.