Other Arabic-derived Alphabets
There are many Arabic-derived alphabets which were not influenced by the Perso-Arabic script, including Jawi (used for Malay), Sorabe (Malagasy), and many alphabets used in Northern Africa. These alphabets used other innovations for writing such common sounds as and, instead of the Perso-Arabic letters پ and گ, although the Jawi script does use the same symbol for (چ).
Read more about this topic: Persian Alphabet