1. Çelik, S. (2016). Setting new standards for in-service teacher training: A model for responsive professional development in the context of English Language Teaching. In Dikilitas, K., Hakki Erten, I. (Eds.) Facilitating In-Service Teacher Training for Professional Development. IGI Global, pp. 300-310.
2. Frigols Martín, M. J., Marsh, D., Mehisto, P., Wolff, D. (2011). European framework for clil teacher education. Retrieved 3/28/2017, from http://www.ecml.at/tabid/277/PublicationID/62/Default.aspx
3. Howard, A., Basurto-Santos, N. M., Gimenez, T., Gonzáles Moncada, A. M., McMurray M., & Traish, A. (2016). A comparative study of English language teacher recruitment, in-service education and retention in Latin America and the Middle East. Retrieved 3/28/2017, from http://www.teachingenglish.org.uk/sites/teacheng/files/G051-ELTRA-paper-a-comparative-study-of-english-language-teacher-recruitment-education-and-retention.pdf
4. Estonian Lifelong Learning Strategy 2020. (2014). Retrieved 3/28/2017, from https://www.hm.ee/sites/default/files/estonian_lifelong_strategy.pdf
5. ELT Conference. (2017). Retrieved 3/28/2017, from http://www.narva.ut.ee/en/elt_konv_en