Westcott, Cynthia, author
D. Van Nostrand, 1955
Buku Referensi
edited by Ashok Pandey
CRC press, 2009
Buku Referensi
Jones, Clive T., author
McGraw-Hill, 1991
Buku Referensi
edited by W.R. Sharp, D.A Evans, P.V. Ammirato, Y. Yamada
Macmillan, 1984
Buku Referensi
edited by Philip V. Ammirato, D.A. Evans, W.R. Sharp, Y. Yamada
Macmillan, 1984
Buku Referensi