APA-čujuhus (7. p.)
Rai, U., & Rai, S. M. (2010). Business communication (Rev. ed.). Himalaya Pub. House.
Chicago-čujuhus (17. p.)
Rai, Urmila, juo S. M. Rai. Business Communication. Rev. ed. Mumbai [India]: Himalaya Pub. House, 2010.
MLA-čujuhus (9. p.)
Rai, Urmila, juo S. M. Rai. Business Communication. Rev. ed. Himalaya Pub. House, 2010.
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