- Letter writing, Arabic1
- Letter writing, Persian1
- Letters1
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- Logic, Medieval1
- Lunar eclipses1
- Lāmīyah (Zaqqāq, ʻAlī ibn Qāsim)1
- Lāmīyat al-afʻāl (Ibn Mālik, Muḥammad ibn ʻAbd Allāh)1
- Lāmīyat al-jumal (Mijrādī, Muḥammad ibn Muḥammad)1
- Mabādiʼ fī al-taṣrīf (Zanjānī, ʻAbd al-Wahhāb ibn Ibrāhīm)1
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