Research methods /

Antzeko izenburuak

• Research methods
  nork: William M.K. Trochim
  Argitaratua: (2003)
• Research methods
  nork: Trochim,William M K
  Argitaratua: (2003)
• RESEARCH METHODS
  nork: TROCHIM, WILLIAM M K
  Argitaratua: (2009)
• Research methods /
  nork: Trochim, William M K
  Argitaratua: (2003)
• Research methods /
  nork: Trochim, William M K .
  Argitaratua: (2004)