Additional bibliography for study
Lightbown, Ρ. Μ. & Spada Ν. (2006). How languages are learned. Oxford University Press.
Dulay, H., Burt, M., & Krashen, S. (1982). Language two. Oxford University Press. (Chapτ. 3: Internal processing, Chapt. 4: Effects of personality & age, Chapt. 5: The role of the first language)
Gass, S., & Selinker, L. (2008). Second language acquisition: An introductory course. Lawrence Erlbaum. (Chapτ. 4: The role of the native language: an historical overview)
Krashen, S. D. (1985). The input hypothesis: Issues and implications. Longman. (Chapters 1 & 2).
Selinker, L. (1992). Rediscovering interlanguage. Longman. (Chapτ. 1: Beginnings: Fries, Lado, Chapτ. 2: Towards Interlanguage: Uriel Weinreich)