Popov, Egor P., author
Erlangga, 1984
Buku Teks
Olsen, Gerner A., author
Prentice-Hall, 1982
Buku Teks
Ashby, M. F. (Michael F.), author
Prentice-Hall, 1976
Buku Teks
Hearn, E. J., author
Pergamon Press, 1985
Buku Teks
Granet, Irving, author
Reston, 1979
Buku Referensi