رِسَالَةُ فِي اَلْكَلاَمِ عَلَي اَلْحُرُوفِ

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: رِسَالَةُ فِي اَلْكَلاَمِ عَلَي اَلْحُرُوفِ . Source: Wellcome Collection.