Gummesson, E. (1999). Total relationship marketing: From the 4Ps-product, price, promotion, place-of traditional marketing management to the 30Rs-the thirty relationships - of the new marketing paradigm. Boston, Mass.: Butterworth-Heinemann.
শিকাগো স্টাইলে সাইটেশনGummesson, Evert. Total Relationship Marketing: From the 4Ps-product, Price, Promotion, Place-of Traditional Marketing Management to the 30Rs-the Thirty Relationships - of the New Marketing Paradigm. Boston, Mass.: Butterworth-Heinemann, 1999.
এমএলএ সাইটেশনGummesson, Evert. Total Relationship Marketing: From the 4Ps-product, Price, Promotion, Place-of Traditional Marketing Management to the 30Rs-the Thirty Relationships - of the New Marketing Paradigm. Boston, Mass.: Butterworth-Heinemann, 1999.