Classes 9-10

Writers

Raihana Shams

Md. Zulfeqar Haider

Goutam Roy

Surajit Roy Majumder

Md. Abdur Razzaque

Naina Shahzadi

Editor

M S Hoque

NATIONAL CURRICULUM & TEXTBOOK BOARD, DHAKA

Published by

National Curriculum & Textbook Board

69-70, Motijheel Commercial Area, Dhaka

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[All rights reserved by the publisher]

First Publication: October, 2012

Revised Edition : September 2014

Text Development Coordinator

Mohammad Humayun Kabir

Cover

Sudarshan Bachar

Sujaul Abedeen

Illustrations

Prohlad Karmaker

Design

National Curriculum & Textbook Board

Computer Compose

Server Station, Chittagong

For free distribution from academic year 2010 by the Government of Bangladesh.