APA-čujuhus (7. p.)
Madhukar, R. K. (2018). Business communication (Third edition.). Vikas Publishing House Pvt Ltd.
Chicago-čujuhus (17. p.)
Madhukar, R. K. Business Communication. Third edition. Noida: Vikas Publishing House Pvt Ltd, 2018.
MLA-čujuhus (9. p.)
Madhukar, R. K. Business Communication. Third edition. Vikas Publishing House Pvt Ltd, 2018.
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