Rice, Harold S. Ensiklopedia sejarah Islam Ahmad Syalabi ; penterjemah: H.M. Yusuf Sinaga, Abdurrahman Saleh Siregar - 3rd.ed. - New York, McGraw-Hill [1974, c1975] - xviii, 954 p. illus. 24 cm. ISBN: 0070522057 Subjects--Topical Terms: Mathematics.