Miller, John C.
Stanford University Press, 1965
Buku Teks
George Braziller, 1962
Buku Teks
Moniz, Amanda B., author
Oxford University Press, 2016
eBooks
Nash, Gary B., author
Harvard University Press, 1979
Buku Teks
Bergstrom, Theodore C.
York McGraw-Hill , 2000
Buku Teks