TY  - BOOK
AU  - Akhtar,Ahsan
AU  - Ahsan,Sabiha
TI  - Textbook of differential calculus
SN  - 9788120338531
PY  - 2009///
CY  - New Delhi
PB  - PHI Learning
KW  - Differential calculus
KW  - Textbooks
ER  -