Bonham, Charles D.
John Wiley & Sons, 1989
Buku Teks
by Michael G. Barbour ... [and others]
An Imprint of Addison Wesley Longman , 1998
Buku Teks
Moss, C.E. (Charles Edward), author
Cambridge University Press, 2014
Buku Teks
Grime, J.P., author
John Wiley & Sons, 1979
Buku Teks
Organisation for Economic Co-operation and Development, 1955
Buku Teks