Id, Yusuf |
An analemma construction for right and oblique ascensions / by Yusif [i.e. Yusuf] Id. |
Kennedy, Edward Stewart, 1912-2009 |
A letter of al-Biruni habash al-Hasib's analemma for the qibla / by E.S. Kennedy and Yusuf'id |
In: Historia mathematica Vol. 1 (1974), p. 3-11 |
Id, Yusuf |
A medieval proof of Heron's formula / by Yusuf Id and E.S. Kennedy |