Research design : qualitative & quantitative approaches /

Eitemau Tebyg

• Research design : qualitative, quantitative, and mixed methods approaches /
  gan: Creswell, John W.
  Cyhoeddwyd: (2014)
• Research design : qualitative, quantitative, and mixed methods approaches /
  gan: Creswell, John W.
  Cyhoeddwyd: (2018)
• Real world research : a resource for social scientists and practitioner-researchers /
  gan: Robson, Colin
  Cyhoeddwyd: (2002)
• Research design : qualitative, quantitative, and mixed methods approaches /
  gan: Creswell, John W.
  Cyhoeddwyd: (2009)
• Doing research in the real world /
  gan: Gray, David E.
  Cyhoeddwyd: (2013)