Bold, Benjamin Geometryer sob bikkhato somossha o somadhan (Famous problems of geometry and how to solve them) / Benjamin Bold - Dhaka : Somoy prakashan , 2008 - 93p. : ill. ; 20 cm. ISBN: 9847011400633 Subjects--Topical Terms: GeometryMathematics Dewey Class. No.: Be 513 / BOL