Aljerow Putra, author
2016
UI - Skripsi (Membership)
Jefkins, Frank William, author
MacMillan Publishers, 1985
Buku Teks
Brannen, William H.
Prentice-Hall, 1983
Buku Teks
Lockett, David M.
NTC Business Books, 1989
Buku Teks
Sharfina Jasmine, author
2017
UI - Skripsi (Membership)