Rampal, K.K.
Oxford & IBH, 1982
Buku Teks
Sharp, H. Oakley
Macmillan, 1951
Buku Teks
Wolf, Paul R.
Gadja Mada University Press, 1993
Buku Teks
Jun Chen, Emmanuel Baltsavias, editor
CRC Pres, 2008
Buku Teks
Ghosh, Sanjib K.
Ohio The Ohia State University, 1968
Buku Teks