Indonesia.Departemen Pendidikan dan Kebudayaan
Dirjen Dikti, 1994
Buku Referensi
Aamodt, Michael G., author
Wadsworth and Cengage Learning, 2013
Buku Teks
Aamodt, Michael G., author
Cengage Learning, 2016
Buku Teks
Taylor, Weldon Johnson, 1908-, author
South-Western Publishing, 1975
Buku Teks
Hughes, G. David, author
Addison-Wesley, 1978
Buku Teks