Focus groups: theory and practice

Eitemau Tebyg

• Focus groups: theory and practice
  gan: Prem N Shamdasani; Author, et al.
  Cyhoeddwyd: (2007)
• Focus groups : theory and practice /
  gan: Stewart, David W.
• Focus group practice /
  gan: Puchta, Claudia
  Cyhoeddwyd: (2004)
• Focus groups : a practical guide for applied research /
  gan: Krueger, Richard A.
  Cyhoeddwyd: (1994)
• Focus groups : a practical guide for applied research /
  gan: Krueger, Richard A.
  Cyhoeddwyd: (1994)