editors, Perrin Walker, William H. Tarn
CRC Press, 1991
Buku Referensi
Lange, Kurt
McGraw-Hill, 1985
Buku Referensi
Burgess, John Stewart
John Wiley & Sons, 1978
Buku Teks
Bartok, M.
John Wiley & Sons, 1985
Buku Teks
edited by B.F.G. Johnson
John Wiley & Sons, 1980
Buku Teks