TY  - BOOK
AU  - Avilla, Ruel Atendido 
TI  - Practical research 1 / 
T2  - Diwa Senior high school series
SN  - 978-971-46-0858-0
U1  - 370.7123 
PY  - 2016///]
CY  - Makati City : 
PB  - Diwa Learning System, 
KW  - Research--Methodology.
N1  - Bibliography p. 119-124
ER  -