Andrews, Donald H.
Wiley Eastern, 1965
Buku Teks
by J.H. Wood ... [and others]
Evenston Harper, 1963
Buku Teks
Wood, Jesse H.
Evenston Harper, 1963
Buku Teks
Whitten, Kenneth W.
Saunders College, 1992
Buku Teks
Umland, Jean B.
Brooks/Cole, 1999
Buku Teks