By Norman Long, Ann Long
By Paul N. Hague, Paul Harris
By Gillian Symon, Cathy Cassell
By E. Oyen
By Robert K. Yin
By Gareth Morgan
By Professor Martyn Hammersley (Professor in Educational and Social Research, The Open University)
By Stephanie J. A. Taylor
By Inger Furseth, Euris Larry Everett
By Alan Thomas, Joanna Chataway, Marc Wuyts
By Jennifer C. Hunt
By Dr. Kyle C. Longest
By Roger Tarling (University of Surrey, UK)