Boy Subirosa Sabarguna, author
UI-Press, 2007
Buku Teks
Flippo, Edwin B., author
McGraw-Hill Kogakusha, 1976
Buku Teks
Armstrong, Michael, author
Crest Publishing House, 1999
Buku Teks
McGraw-Hill, Irwin, 2003
Buku Teks
Bohlander, George W., author
South Western Cengage Learning, 2013
Buku Teks