The Muslim contribution to mathematics / Ali Abdullah Al-Daffaʹ. Daffā, ʻAlī ʻAbd Allāh. Mathematics, Arab. QA23 .D33 1977 510.9 ALM Includes index. Bibliography: p. 103-118. Atlantic Highlands : Humanities Press, c1977. c1977. 1977 Text 121 p. : eng