TY - BOOK AU - Balcı,Hasan AU - Cengiz,Perihan AU - San,Edib TI - Problemler dünyası: İlköğretim 2 SN - 9755864415 PY - 2006/// CY - İstanbul PB - Mutlu KW - Mathematics KW - Study and teaching KW - Grade 2 KW - sears N1 - Includes CDROM; K-3 ER -