TY  - BOOK
AU  - OSUALA,E.C
TI  - Introduction to research methodology
SN  - 978-175-431 1
AV  - Q180.55.M4.o88 
PY  - 2005///
CY  - Onitsha
PB  - Africana First Publishers Plc
KW  - Research methodology
ER  -