Walker, O. C. a. (2006). Marketing strategy: Division focused approach (5th ed.). Tata McGraw Hill.
Chicago Stili AlıntıWalker, Orville C...[et al.]. Marketing Strategy: Division Focused Approach. 5th ed. New Delhi: Tata McGraw Hill, 2006.
MLA AlıntıWalker, Orville C...[et al.]. Marketing Strategy: Division Focused Approach. 5th ed. Tata McGraw Hill, 2006.
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