By N. Nissanke
By Chris Lefteri
By Bird, John O., May, A. J. C.
By Jan J. Tuma
By Daniel P. Raymer
By Patrick Engebretson (Assistant Professor of Information Assurance; Senior Penetration Tester for security firm in the Midwest)
By A.E. Peatfield
By Mimi Zeiger
By Robert J. Young (University of Manchester, UK), Peter A. Lovell (University of Manchester
By Susan Orlean
By Robin Mearns, Melissa Leach
By United Nations Environment Programme
By Anita Tull
By Joe Jackson
By Roberts, Gerrylynn K.
By Open University
By Collett, Charles Vincent, Hope, A. D.
By Toulhoat, Herve, Lecourtier, Jacqueline
By H. Versteeg, W. Malalasekera
By Chris Hughes
By Kaku, Michio
By Mike Pauken
By Seymour Papert, Seymour A. Papert
By Inbali Iserles, Collins Big Cat
By Albert Paul Malvino
By Food and Agriculture Organization of the United Nations
By Vicki Yates
By Mr Tim Dunlop