Herz, John H.
Colombia University Press, 1960
Buku Teks
Dunning, John H.
George Allen and Unwin , 1974
Buku Teks
MacDonald, John Haskell, 1896
Prentice-Hall, 1939
Buku Teks
Kautsky, John H.
Krieger Pub. Co, 1980
Buku Teks
Fasal, John H.
Hayden Book company , 1972
Buku Teks