TY  - BOOK
AU  - Aggarwal, J C
TI  - Theory and principles of Education 
SN  - 978-81-259-3847-7
U1  - 370.1 23rd ed. 
PY  - 2019///
CY  - Noida
PB  - Vikas Publishing 
KW  - Education
UR  - www.vikaspublishing.com 
ER  -