BIBLIOGRAPHY CONTRIBUTOR Aḥmad Al-Ḥassan First name Aḥmad Last name Al-Ḥassan Bibliography entries by this contributor Hill, Donald, Aḥmad Al-Ḥassan, Maqbul Ahmed, and A. Iskandar. 2001. “Mechanical Technology”. In The Different Aspects of Islamic Culture, Vol. 4: Science and Technology in Islam. Part 2: Technology and Applied Sciences.:165-92. Beirut: UNESCO. Al-Ḥassan, Aḥmad, Aḥmad Al-Ḥassan, Maqbul Ahmed, and A. Iskandar. 2001. “Mining and Metallurgy”. In The Different Aspects of Islamic Culture, Vol. 4: Science and Technology in Islam. Part 2, Technology and Applied Sciences:85-87. Beirut: UNESCO. Al-Ḥassan, Aḥmad, Aḥmad Al-Ḥassan, Maqbul Ahmed, and A. Iskandar. 2001. “Mining and Metallurgy”. In The Different Aspects of Islamic Culture, Vol. 4: Science and Technology in Islam. Part 2, Technology and Applied Sciences:85-87. Beirut: UNESCO. Al-Ḥassan, Aḥmad. 1981. Kitāb Al-Ḥiyal taṣnīf Banū Mūsā Ibn Shākir [The Book of Ingenious Devices by the Sons of Mūsā Ibn Shākir]. Aleppo/Ḥalab: University of Aleppo, Institute for the History of Arabic science/Gāmiʿaẗ Ḥalab, Maʿhad al-Turāṯ al-ʿIlmī al-ʿArabī.