edited and compiled by Chi Pang-yuan ... [et al.]
National Institute for Compilation and Translation, 1975
Buku Teks
Koh, Chang-Soo, author
International Publishing House, 1987
Buku Teks
edited by Robert E. Goodin and Philip Pettit
Oxford Blackwell Publishers 1997,
Buku Teks
edited by Stuart Friebert
Longman, 1989
Buku Teks
Wang, James C.F., author
Prentice-Hall, 1985
Buku Teks