Lee, Sidney, Sir, 1859-1926
NPR = New Products Review
IMS Pacific, 1985
 Buku Teks
Crawford, C. Merle
New Products management
McGraw-Hill, 2003
 Buku Teks
The New products handbook
edited by Larry Wizenberg
Dow Jones-Irwin, 1986
 Buku Referensi
Crawford, C. Merle
New Products management
McGraw-Hill/Irwin, 2000
 Buku Teks
Crawford, C. Merle
New products management
McGraw-Hill , 2015
 Buku Teks