Heckman, Carolyn J., editor
[Springer, ], 2012
eBooks
Sobel, Michael I., author
University of Chicago, 1987
Buku Teks
Artikel Jurnal
Yang, Chin S., author
Wiley-Interscience, 2007
Buku Teks
Pepper, Darrell W., author
Imperial College Press, 2009
Buku Teks