Bailey, Thomas Andrew, 1902-1983, author
Prentice-Hall, 1980
Buku Teks
Davies, J. Kenneth, 1925-, author
J.B. Lippincott, 1970
Buku Teks
Oscar Handlin ... [et.al] author
Belknap Press, 1963
Buku Teks
Woll, Peter, author
Longman , 2001
Buku Teks
Woll, Peter, author
Little, Brown, 1965
Buku Teks