19 July 2012. Archived from the original on 19 July 2012. ↑ "ScriptSource". scriptsource.org. ↑ "ScriptSource". scriptsource.org. ↑ "Lost Language — Bostonia Summer 2009". bu.edu. ↑ "ScriptSource". scriptsource.org. ↑ "ScriptSource". scriptsource.org. ↑ "Ibn Sayyid manuscript". ↑ "Muhammad Arabic letter". ↑ "Charno Letter".