1. The history of ancient Indian mathematics by C.N. Srinivasiengar;Broadbent;Math. Gaz.,1968
2. A new reading of method proposition 14: preliminary evidence from the Archimedes Palimpsest;Netz;I. SCIAMVS 2,2001
3. Innovation and tradition in Sharaf Al-Din Al-Tusi’s Muadalat;Berggren;J. Am. Orient. Soc.,1990
4. Ideas of calculus in Islam and India;Katz;Math. Mag.,1995
5. Differential Calculus;Edwards,1892