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3. Alexander, R. (2020). A dialogic teaching companion. Routledge.
4. Alexander, C., Silverstein, M., Angel, S., Ishikawa, S., & Abrams, D. (1975). The Oregon experiment. Oxford University Press.
5. Alexander, C., Ishikawa, S., Silverstein, M., Jacobson, M., Fiksdahl-King, I., & Angel, S. (1977). A pattern language: Towns, buildings, construction. Oxford University Press.