TY  - BOOK
AU  - Trochim,William M.
AU  - Donnelly,James P.
AU  - Arora,Kanika
TI  - Research methods: the essential knowledge base 
SN  - 9781133954774
PY  - 2016///
CY  - Boston, MA
PB  - Cengage Learning
KW  - Research
KW  - Methodology
N1  - Includes bibliographical references and index
ER  -