Social research methods : quantitative and qualitative approaches /

Eitemau Tebyg

• Social research methods: quantitative and qualitative approaches/
  gan: Neuman,W Lawrence
  Cyhoeddwyd: (2013)
• Social research methods : qualitative and quantitative approaches /
  gan: Neuman, W. Lawrence
  Cyhoeddwyd: (2015)
• Social research methods : qualitative and quantitative approaches /
  gan: Neuman, W. Lawrence
  Cyhoeddwyd: (2006)
• Social research methods : qualitative and quantitative approaches
  gan: Neuman, W.Lawrence
  Cyhoeddwyd: (2008)
• Social research methods, Quantitative and qualitative approaches
  gan: Neuman, Lawrence
  Cyhoeddwyd: (2007)