Salman, Musa. Mathematics 5+2 / by Musa Salman. - Istanbul : Beta, 1992. - 374 p. : ; 24 cm. - Eğitim Dizisi 17 . - Eğitim Dizisi 17 . ISBN: 9754862133 Subjects--Topical Terms: Mathematics--Problems, exercises, etc.Mathematics--Study and Teaching.