WITNESS Kitāb fī al-ʿamal bi-al-asṭurlāb (Aṣbagh ibn al-Samḥ)_London_British Library_Add._9602 Exemplar of Kitāb fī al-ʿamal bi-al-asṭurlāb (Aṣbagh ibn al-Samḥ) Author أبو القاسم أصبغ بن محمد بن السمح الغرناطي Abū al-Qāsim Aṣbagh ibn Muḥammad ibn al-Samḥ al-Gharnāṭī ismi_id 154884