Barker, Stephen
Brilliant project management : what the best project managers know, do and say
Pearson, 2012
 Buku Teks SO
Margaretha Quina
Towards safer seafood: what indonesian law should "say" about mercury-contaminated fish / Margaretha Quina
University of Indonesia, Faculty of Law, 2016
 Artikel Jurnal
Stone, Gerald
Examining Newspapers: what research reveals about America's newspapers
Sage, 1987
 Buku Teks SO
White, Roderick
Advertising : what it is and how to do it
McGraw-Hill, 1993
 Buku Teks SO
Allen, William Richard, 1924-
What managers do
American Management Association, 1993
 eBooks