Nainggolan, Joanne Cindy Theresia, author
2015
UI - Skripsi (Membership)
Schaarschmidt, Mario, author
[Gabler Verlag, ], 2012
eBooks
Blake, Robert R.
Gulf Pub. Co., Book Division, 1978
Buku Teks
Griffin, Ricky W., author
Prentice-Hall, 2002
Buku Teks
Griffin, Ricky W., author
Prentice-Hall, 2002
Buku Teks