Lua APA (7ú heag.)

SUMATHI S. (2008). MARKETING RESEARCH & CONSUMER BEHAVIOUR. VIKAS PUBLISHING HOUSE.

Lua i Stíl Chicago (17ú heag.)

SUMATHI S. MARKETING RESEARCH & CONSUMER BEHAVIOUR. NEW DELHI: VIKAS PUBLISHING HOUSE, 2008.

Lua MLA (9ú heag.)

SUMATHI S. MARKETING RESEARCH & CONSUMER BEHAVIOUR. VIKAS PUBLISHING HOUSE, 2008.

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