Case, John
Edward Arnold, 1993
Buku Teks
Case, John
Edward Arnold, 1971
Buku Teks
Alexander, John M. (John Malcolm)
John Wiley & Sons, 1981
Buku Teks
Singer, Ferdinand L., author
Harper & Row, 1980
Buku Teks
Stepin, P., author
Peace, [1964?]
Buku Teks