TY  - BOOK
AU  - Dhaonchak;Poonam K.,Kumari;Meena,Yadav;Rashtrapal at all...
TI  - Partial defferential equations
SN  - 978-93-80896-04-5
PY  - 2022///
CY  - New Delhi 
PB  - Jeevansans publications
KW  - Mathematics
ER  -