Bernardus Y. Nugroho, author
2011
Artikel Jurnal
Cass, John, author
Elsevier, 2007
Buku Teks
Puranam, Phanish, author
Cambridge University Press, 2016
Buku Teks
Fulmer, Robert M., author
Macmillan, 1974
Buku Teks
Fulmer, Robert M., author
Macmillan, 1978
Buku Teks