Ackroyd, Peter, 1949-, author
Alkin Books, 1993
Buku Teks
Winberg, Chai, author
Capricorn Books, 1974
Buku Teks
Gittinger, J. Price, author
Center for Development Planning, National Planning Association, 1966
Buku Teks
Teng, Ssu-Yu
The University of Chicago Press, 1947
Buku Teks
Li, Lanqing, author
Gale Asia, 2009
Buku Teks