Goldstein, Beth
The ultimate small business marketing toolkit
McGraw-Hill , 2007
 Multimedia
Thaler, Malcom S.
Satu-satuya Buku EKG yang Anda perlukan =The only EKG book you'll ever need
Penerbit Buku Kedokteran EGC, 2016
 Buku Teks SO
Christensen, Mary, 1951-
Be a network marketing superstar: the one book you need to make more money than you ever thought possible
American Management Association, 2007
 eBooks
Waterworth, Derek
Marketing for the small business Derek Waterworth/ Derek Waterworrth
Basingstoke Macmillan ., 1987
 Buku Teks SO
Business : the ultimate resource
Bloomsbury , 2002
 Buku Referensi