1. Lexical and phonological variation in spoken Arabic in Amman;Abdel-Jawad,1981
2. Pidgins and Creoles: An Introduction,1995
3. The lexical basis of variation in Jordanian Arabic;Bani-Yasin;Linguistics,1987
4. Die Jemenitischen Dialekte;Behnstedt,1985
5. The Roots of Language;Bickerton,1981