Ahmad Bunyan Wahib
Questioning liberal islam in Indonesia: Response and critique to jaringan islam liberal
UIN Sunan Kalijaga, 2006
Artikel Jurnal
Cherry, Paul
Questions that sell: the powerful process for discovering what your customer really wants
American Management Association, 2006
eBooks
Johnson, Falk S.
Improving what you write
Houghton Mifflin, 1965
Buku Teks
Smucker, Bob
The Nonprofit lobbying guide : advocating your cause--and getting results / Bob Smucker
Jossey - Bass Publishers, 1991
Buku Teks
Considering a Japanese Morality: What the Life of Chikuro Hiroike Represents
Artikel Jurnal