Dyck, V.A.
Reston, 1984
Buku Teks SO
Etter, Delores Maria, 1947-
Benjamin/Cummings, 1984
Buku Teks SO
Kreitzberg, Charles B.
Harcourt Brace Javanovich, 1982
Buku Teks SO
Ellis, T.M.R.
Addison-Wesley Pub., 1982
Buku Teks SO
Maratek, Samuel L.
Academic Press, 1983
Buku Teks SO