1. Rhazes M (about 930) (1964) Manfe’ al Aghzie va Mazareha (Benefits of food and its harmfulness). Taban Press, Tehran
2. Rhazes M (about 925) (1497) De regimine sanitatis, or Epistula Alexandro de dieta servanda. Juan de Sevilla Hispanus (Transl.) (about 1145). Antoine Vérard, Paris
3. Bacon R (1280) (1920) Secretum secretorum cum Glossis et Notulis. In: Steele R (ed) Opera hactenus inedita Rogeri Baconsi. Clarendon Press, Oxford, pp 287–313
4. Albæripæ W (about 1160) (1165) Tractatus Numerorum a ternario usque ad duodenarium, ad Thomam monachum, vol 969. Médiathèque de Troyes incunable, Troyes, pp 195–196
5. Shaiykh Bahā’ī, M (about 1610) (1843) Kholasat al-Hesab. The summa of arithmetic. In: Nesselmann GHF (trans.) Essenz der Rechenkunst von Mohammed Beha-eddi ben al-Hosain, al-Khulasa fil hisab. G. Reimer, Berlin