Gatrell, Jay D., author
Springer, 2012
eBooks
Haring, Lloyd
Wm. C. Brown Co. Pub., 1983
Buku Teks
Basil Gomez and John Paul Jones III, edited
Wiley-Blackwell, 2010
Buku Teks
Fraenkel, Jack R., 1932-2014, author
McGraw-Hill, 2008
Buku Teks
Young, Felina C., author
IPWI, 1999
Buku Teks