Paquette, Gerard A.
Holbrook Press, 1975
Buku Teks
Marano, Joseph
Prentice-Hall, 1973
Buku Teks
Dyke, James Van, 1813-1855
Brooks/Cole Cengage Learning, 2012
Buku Teks
Horner, Donald H.
Rinehart, 1973
Buku Teks
Tan, S.T.
PWS Publishing Company, 1994
Buku Teks SO