Professional evaluation: social impact and political consequences /

Eitemau Tebyg

• Diseños Experimentales y cuasiexperimentales en la investigación social /
  gan: Campbell, Donald T.
  Cyhoeddwyd: (2001)
• Designing and conducting ethnographic research /
  gan: LeCompte, Margaret D.
  Cyhoeddwyd: (1999)
• Identifying and labeling variables
  gan: Tuckman, Bruce W.
• Research planning and desing
  gan: Leedy, Paul
• Theory choice and problem choice in science
  gan: Zuckerman, Harriet