Borg, Walter R.
David Mc Kay Co., 1963
Buku Teks
Vockell, Edward L.
Macmillan, 1983
Buku Teks
Mouly, George J.
American Book, 1963
Buku Teks
McAshan, H. H. (Hildreth Hoke)
McGraw-Hill, 1963
Buku Teks
Wiersma, William, author
Pearson/Allyn and Bacon, 2005
Buku Teks