ELSEVIER,
Majalah, Jurnal, Buletin
Adler, Frederick R., author
Thomson, Brooks/Cole, 2005
Buku Teks
Springer International Publishing, 2016
eBooks
edited by Adrian Friday, David S. Ingram
Cambridge University Press, 1985
Buku Referensi
editor, Daniel N. Lapedes
McGraw-Hill, 1976
Buku Referensi