1. 3 It is an important work about the nineteenth century's Hesperian depictive linguistics and comparative linguistics combining with the research of Beijing Mandarin.

2. →Coptic keyboard • Coptic language: a course of lessons, by Nabil Isshak (2006) • The Egyptian-Coptic language, by Eitan Grossman & Tonio Sebastian Richter (2014) • studies about the Coptic language, by Tonio Sebastian Richter • Egyptian-Coptic and comparative linguistics in the century from Schlegel to Fink, early encounters (2015) • Coptic noun phrases by Egedi Barbara, thesis (2012)