HIgher secondary trigonometry
Das, B. C.
HIgher secondary trigonometry / B. C. Das and B. N. Mukherjee. – 10th ed. – Calcutta : U. N. Dhur, 1991.
various pages
512.13 / DAS\H
B19592
HIgher secondary trigonometry / B. C. Das and B. N. Mukherjee. – 10th ed. – Calcutta : U. N. Dhur, 1991.
various pages
- Intermediate trigonometry
- Trigonometry
- Mathematics .
512.13 / DAS\H
B19592