Bearden, James H.
The environment of business : perspectives and viewpoints
Holt, Rinehart and Winston , 1969
 Buku Teks
Kelley, Eugene J.
Managerial marketing : perspectives and viewpoints a source book
Richard D. Irwin, 1967
 Buku Teks
Rahman, Tunku Abdul
Viewpoints
Heineman Educational Books, 1978
 Buku Teks
Din, Rasshied
New Retail
Conran Octopus, 2000
 Buku Referensi
Din, Rasshied
New retail
Conran Octopus, 2000
 Buku Teks SO