DR KRISHNARAJ, V. K. THE ART OF EFFECTIVE WRITING BUSINESS & OFFICIAL LETTER WRITING FOR ALL OCCASIONS.
Čikaški stil citiranja (17. izdanje)DR KRISHNARAJ, VASANTHA. K GOLDENMINDS. THE ART OF EFFECTIVE WRITING BUSINESS & OFFICIAL LETTER WRITING FOR ALL OCCASIONS.
MLA način citiranja (9. izdanje)DR KRISHNARAJ, VASANTHA. K GOLDENMINDS. THE ART OF EFFECTIVE WRITING BUSINESS & OFFICIAL LETTER WRITING FOR ALL OCCASIONS.
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