TY  - BOOK
AU  - Akhtar  Ahsan.
AU  - Ahsan Sabiha.
TI  -  Textbook of differential calculus
SN  - 9788120338531
U1  - 515.3 
PY  - 2009///
CY  - New Delhi
PB  - PHI Learning
KW  - Differential calculus
N1  - Include Index
ER  -