Tuinenga, Paul W., author
Prentice-Hall, 1995
Buku Referensi
O`Malley John R.
"Englewood Cliffs, NJ: Prentice-Hall, 1980"
Buku Teks
edited by E. Wolfendale
John Wiley & Sons, 1973
Buku Teks
Rorabaugh, C. Britton, author
McGraw-Hill, 1992
Buku Teks
Rorabaugh, C. Britton, author
McGraw-Hill, 1992
Buku Teks