Weninger, Stefan (2011), “Reconstructive Morphology”, in Weninger, Stefan, editor,The Semitic Languages. An International Handbook (Handbücher zur Sprach- und Kommunikationswissenschaft – Handbooks of Linguistics and Communication Science;36), Berlin: De Gruyter,→ISBN, page169
Huehnergard, John (2019), “Proto-Semitic”, in Huehnergard, John and Na'ama Pat-El, editors,The Semitic Languages, 2nd edition, Routledge,→ISBN, page67