Sorenson, Ritch
Business and management communication : a guide book
Prentice-Hall, 2001
 Buku Referensi
The Computer users year book 1989 : supplier guide, volume 4
VNU Business Publications, 1989
 Buku Referensi
The Computer users year book 1989 : services, volume 2
VNU Business Publications, 1989
 Buku Referensi
Nasution, S.
Buku petunjuk membuat thesis, skripsi, book report, laporan
Jemmans, 1976
 Buku Teks
Adler, Mortimer Jerome, 1902-2001
How to Read a book = Cara jitu mencapai puncak tujuan membaca
Indonesia Publishing , 2007
 Buku Teks