Black, Amalia, author
PT Grasindo, 2015
Buku Teks
Universitas Indonesia, 2012
Majalah, Jurnal, Buletin
Bond, W.L., author
John Wiley & Sons, 1976
Buku Teks
edited by W. Bardsley, D.T.J. Hurle, J.B. Mullin
North-Holland , 1979
Buku Teks
Cambridge University Press, 2004
eBooks