TY  - BOOK
AU  - Mohammad Pervez
TI  - Concrete operational thought as a construct and its relevance to school education in Pakistan
U1  - 370.15095491 
PY  - 1992///
CY  - Islamabad
PB  - Quaid-i-Azam University
KW  - Educational psychology
KW  - Education, primary-Pakistan
KW  - Psychology-Pakistan
UR  - Supervised by Ajmal, Dr. Muhammad
ER  -