Research methods : quantitative and qualitative approaches /

Eitemau Tebyg

• Research methods : Quantitative and qualitative approaches /
  gan: Mugenda, Olive M.
  Cyhoeddwyd: (1999)
• Research methods : quantitave & qualitative approaches /
  gan: Mugenda, Olive M.
  Cyhoeddwyd: (2003)
• Research strategies in the social sciences a guide to new approaches /
  Cyhoeddwyd: (1998)
• The NVivo qualitative project book /
  gan: Bazeley, Patricia
  Cyhoeddwyd: (2000)
• Social research methods : qualitative and quantitave approaches /
  gan: Neuman, W. Lawrence
  Cyhoeddwyd: (2006)