APA
K K Ashokan, . (2006). Business Communication. Calicut: Calicut University Central Public Stores.
Chicago
K K Ashokan, . 2006. Business Communication. Calicut: Calicut University Central Public Stores.
Harvard
K K Ashokan, . (2006). Business Communication. Calicut: Calicut University Central Public Stores.
MLA
K K Ashokan, . Business Communication. Calicut: Calicut University Central Public Stores. 2006.