Introduction to social research /

Ижил төстэй зүйлс

• Introduction to social research /
  -н: Labovitz, Sanford
• The practice of social research /
  -н: Babbie, Earl
  Хэвлэсэн: (1998)
• The practice of social research /
  -н: Babbie, Earl
  Хэвлэсэн: (1992)
• The practice of social research /
  -н: Babbie, Earl
  Хэвлэсэн: (1989)
• The practice of social research /
  -н: Babbie, Earl R.
  Хэвлэсэн: (1979)