Till, William C.
Integrated circuits: materials, devices and fabrication / William C. Till, James T. Luxon
Prentice-Hall, 1982
 Buku Teks
Leffingwell, William Henry
Textbook of office management / William Henry Leffingwell and Edward Marshall Robinson
McGraw-Hill , 1950
 Buku Teks
Carter, Irl, author
Human behavior in the social environment: a social systems approach
AldineTransaction, 2011
 Buku Teks
Briggs, David J., author
Agriculture and environment: the physical geography of temperature agriculture systems
Longman Scientific & Technical, 1994
 Buku Teks
Strahler, Alan H., author
Physical geography : science and systems of the human environment
John Wiley & Sons, 1997
 Buku Teks