Kintner, William R
Henry Regnery Comapany, 1962
Buku Teks
Harper , 1959
Buku Teks
Reinhardt, George C.
Dobleday, 1960
Buku Teks
King, William Richard, 1938-, author
Van Nostrand Reinhold, 1978
Buku Teks
Gray, Colin S., author
Routledge, 2012
Buku Teks