L., L., D., J., D., B., A.(1993).Consumer behavior : concept and application / David L. Loudon, Albert J. Della Bitta (Ed.ke-4).New York:McGraw-Hill.
Gaya MLA
Loudon, David, L.., J., Della, Bitta,, Albert."Consumer behavior : concept and application / David L. Loudon, Albert J. Della Bitta".Ed.ke-4New York:McGraw-Hill,1993.Textbook.