Dòng Nội dung
1
Analysis for marketing planning / Donald R. Lehmann, Russell S. Winer.
Chicago : Irwin, 1997
xi, 211, I-8 p. : ill. ; 24 cm.
2
Marketing research / Donald R Lehmann, Sunil Gupta, Joel H Steckel.
Reading, MA : Addison-Wesley, 1998
xx, 780 p. : ill. ; 25 cm.