Mayberry, Grant E., author
American Management Association, 1993
eBooks
Wellington, J. J. (Jerry J.), author
RoutledgeFalmer, 2003
Buku Teks
edited by Shirley R. Steinberg and Joe L. Kincheloe
Falmer Press, 1998
Buku Teks
Research Development Corporation of Japan (JRDC)
Research Development Corporation of Japan (JRDC), 1993
Buku Referensi
Mason, Jennifer, author
Sage, 2009
Buku Teks