İmançlı, Musa Zihinden problemler. - Istanbul : Yıldız, 2007. - 208 p. : col., ill ; 20 cm. - 3rd grade . - 3rd grade . This book is in Turkish. ISBN: 994490404X Subjects--Topical Terms: 3rd grade non-fiction.Mathematics--Problems, exercises, etc.Mathematics--Textbooks.