edited by Peter Slater and R. McNeill Alexander
Grolier International, 1986
Buku Referensi
Dillon, Lawrence S., author
WM.C. Brown, 1976
Buku Teks
Boughey, Arthur S., author
Dickenson , 1967
Buku Teks
Mayr, Ernst, author
Belknap Press, 1963
Buku Teks
Pandey, B.N., author
Tata McGraw-Hill, 2012
Buku Teks