Stroman, James, author
American Management Association, 2012
eBooks
prepared under the editorial supervision of In Plain English, Inc.
Macmillan, 1996
Buku Referensi
Thomas Wijasa Bratawidjaja, author
Pustaka Binaman Pressindo , 1996
Buku Teks
Thomas Wijasa Bratawidjaja, author
Pustaka Binaman Presindo , 1994
Buku Teks
Buku Teks