Wooldridge, Susan, author
Petrocelli Books, 1974
Buku Teks
Watkins, R. P., author
John Wiley & Sons, 1974
Buku Teks
Salisbury, Alan B., author
Elsevier, 1976
Buku Teks
Gear, Charles William, 1935-, author
McGraw-Hill, 1969
Buku Teks
Baase, Sara, author
Addison-Wesley, 1988
Buku Teks