Nangoi, Ronald, author
Pustaka Sinar Harapan, 1997
Buku Teks
Nangoi, Ronald, author
Pustaka Sinar Harapan, 1997
Buku Teks
Miller, William, author
American Management Association, 2009
eBooks
Thomas, Wayne M., author
Amacom, 2008
Buku Teks
Thomas, Wayne M., author
Amacom, 2008
eBooks