No Inv.: 146867, 146868/P/Perp/15/2c~146869, 146870/P/Perp/2c
No Inv.: 146951/P/Perp/15/1c
Bibliografi : lembar 171-172
No Inv.: 134636/SM/Perp/13/1c
Judul asli : "Principles of Marketing"
Bibliografi : hlm. D1 - D3
No Inv.: 117531,117645-117648/P/Perp/09/5c
Judul asli : "Telemarketing"
No Inv.: 90630-90639/P/Perp/04/10c~106428-106429/P/Perp/06/2c