Cita APA (7th ed.)

Gopala Krishna, C., & Ramakrishnan, L. (2009). Business communication. Himalaya Pub. House.

Cita Chicago (17th ed.)

Gopala Krishna, C., i Lalitha Ramakrishnan. Business Communication. Mumbai: Himalaya Pub. House, 2009.

Cita MLA (9th ed.)

Gopala Krishna, C., i Lalitha Ramakrishnan. Business Communication. Himalaya Pub. House, 2009.