TY - BOOK AU - Trochim,William M.K. AU - Donnelly,James P. AU - Kanika Arora TI - Research methods: the essential knowledge base SN - 9788131530856 U1 - 001.42 PY - 2016/// CY - Andover PB - Cengage Learning KW - Research UR - http://www.loc.gov/catdir/enhancements/fy1513/2014940179-b.html UR - http://www.loc.gov/catdir/enhancements/fy1513/2014940179-d.html UR - http://www.loc.gov/catdir/enhancements/fy1513/2014940179-t.html ER -