1. Al-Seghayer, K. (2001). The Effect of Multimedia Annotation Modes on L2 Vocabulary Acquisition: A Comparative Study. Language Learning & Technology, 5, 202-203.
2. Bochner, J. H., & Bochner, A. M. (2009). A Limitation on Reading as a Source of Linguistic Input: Evidence from Deaf Learners. Reading in a Foreign Language, 21, 143-158.
3. Ceil, L. (1990). Sign Language Research. Gallaudet University Press.
4. Dean, R. K., & Pollard, R. Q. (2005). Consumers and Service Effectiveness in Interpreting Work: A Practice Profession Perspective. In M. Marschark, R. Peterson, & E. Winston (Eds.), Educational Interpreting: From Research to Practice (pp. 112-141). Oxford University Press.
5. Elibiad, M. (1985). A Sociolinguistic Study of the Arabization Process and Its Conditioning Factors in Morro, Buffalo. University of New York.