People speak out
Rewi Alley, 1954
 Buku Teks SO
Findley, Paul
Mereka berani bicara menggugat dominasi lobi Yahudi = They dare to speak out : people and institutions confront Israel's lobby / Paul Findley; Penerjemah: Hamid Basyaib
Lawrence Hill Books, 2003
 Buku Teks SO
Let people speak ; participatory monitoring and evaluation
United Nations Human Settlements Programme
UN-Habitat, 2008
 Buku Teks SO
Bruce, Anne
Speak for a living: the insider's guide to building a speaking career
American Society for Training & Development, 2008
 eBooks
Tracy, Brian
Speak to win: How to present with power in any situation
American Management Association, 2008
 eBooks