Dòng Nội dung
1
Applied social research : tool for the human services / Duane R. Monette, Thomas J. Sullivan, Cornell R. DeJong.
Fort Worth : Harcourt Brace College Publishers, c1994.
xiv, 492 p. : ill; 24 cm.



2
Human services : concepts and intervention strategies / Joseph Mehr.
Boston : Allyn and Bacon, 1992.
354 p. ; 25 cm.