Cundiff, E. W. Fundamentals of modern marketing. Prentice- Hall.
Tohutoru Kātū Chicago (17th ed.)Cundiff, Edward W. Fundamentals of Modern Marketing. N. J.: Prentice- Hall.
Tohutoro MLA (9th ed.)Cundiff, Edward W. Fundamentals of Modern Marketing. Prentice- Hall.
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