Yoshino, Kosaku, author
Routledge , 1992
Buku Teks
Koen Vermeir
Springer, 2012
eBooks
Mayberry, Grant E., author
American Management Association, 1993
eBooks
Myers, M. Scott, author
McGraw-Hill, 1981
Buku Teks
Oppel, Kenneth, 1967-, author
Simon & Schuster Books for Young Readers, 2016
Buku Teks