TY  - BOOK
AU  - Grorge, Darren.
AU  - Mallery, Paul.
TI  - IBM statistics 21 step by step: a simple guide and reference
SN  - 0205985513
PY  - 2014///
CY  - U.S.A.
PB  - Pearson Education
KW  - IBM Statistics 21
KW  - Step by Step SPSS
KW  - Statistics
UR  - http://nhrc.org.np/contact
ER  -