Viardot, Eric
Artech House, 2004
Buku Teks
Stotlar, David K
Brown and Benchmark, 1993
Buku Teks
Phelps, D.M.
Ill. Richard D. Irwin, Inc , 1947
Buku Teks
Farbey, A.D.
Gramedia Pustaka Utama, 1997
Buku Teks
Morse, Stephen A.
Crest Publishing House, 2001
Buku Teks