Higher trigonometry
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D229 ed.31 1253 cRR Das, B.C. Higher trigonometry / B.C. Das ; B.N. Mukherjee. – 31st ed. – Kolkata : U N Dhur, 2006. xiv, 312 p. ; 18 cm. Includes index ISBN 81-85624-69-0 : Rs.70.00 1. MATHEMATICS I. Mukherjee, B.N. , Author Copyright © 2023 . Raidighi College. All rights reserved. | Powered by Koha | Customised by Bengal Library Association. |