Comfort, J., ...,, Rogerson, P., & Stott, T. (1994). Speaking Effectively: Developing Speaking Skills for Business English. Cambridge: Cambridge University.
শিকাগো স্টাইলে সাইটেশনComfort, Jeremy, ..., Pamela Rogerson, এবং Trish Stott. Speaking Effectively: Developing Speaking Skills for Business English. Cambridge: Cambridge University, 1994.
এমএলএ সাইটেশনComfort, Jeremy, ..., Pamela Rogerson, এবং Trish Stott. Speaking Effectively: Developing Speaking Skills for Business English. Cambridge: Cambridge University, 1994.
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