Ben-Chai, David
Sense, 2012
eBooks
Phares Odaffer, Randall Charles, Thomas Cooney, John Dossey, Jane Schielack
Pearson Addison Wesley, 2008
Buku Teks
Garstens, Helen L.
Macmillan, 1969
Buku Teks
Billstein, Rick
Pearson Addison Wesley, 2007
Buku Teks
Bitter, Gary G.
Allyn and Bacon, 1989
Buku Teks