Tohutoro APA (7th ed.)
Stern, L. W., & Adel I. El-Ansary and Anne T. Coughlan. (2001). Marketing channels (5th ed.). Prentice Hall of India.
Tohutoru Kātū Chicago (17th ed.)
Stern, Louis W., me Adel I. El-Ansary and Anne T. Coughlan. Marketing Channels. 5th ed. New Delhi: Prentice Hall of India, 2001.
Tohutoro MLA (9th ed.)
Stern, Louis W., me Adel I. El-Ansary and Anne T. Coughlan. Marketing Channels. 5th ed. Prentice Hall of India, 2001.
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