1. The origins of state organizations in prehistoric highland Fars, Southern Iran;Abbas,2006
2. The dating of rock art: a critique;Bednarik;J. Archaeol. Sci.,2002
3. Rock Art Science: The Scientific Study of Palaeoart;Bednarik,2007
4. Semiotics: The Basics;Chandler,2007
5. A social semiotic foray of boat images in rock art: Communication between two local Scandinavian communities;Cole,2011