Survey Research

Eitemau Tebyg

• Survey research practice/
  gan: Hoinville, Gerald
  Cyhoeddwyd: (1980)
• Survey research methods
  gan: Fowler, Floyd J
  Cyhoeddwyd: (1993)
• Scientific social surveys and research /
  gan: Young, Pauline V
  Cyhoeddwyd: (2000)
• Survey of research in education(Reference)
• Scientific social surveys and research/
  gan: Young, Pauline V
  Cyhoeddwyd: (1979)