Johnson, Alvin S.
Rineka Cipta, 2004
Buku Teks
Croce, Mariano
Springer Science, 2012
eBooks
Sawer, Geoffrey, 1910-1996
Clarendon Press, 1965
Buku Teks
Carlston, Kenneth S.
Columbia University Press, 1956
Buku Teks
Hall, Jerome
Louisiana State University Press, 1963
Buku Klasik