1. The belles-letteres Style Defination of Belles-Letters in English Grammar

List of Used Literatures

1. 
   Tomasello, M. (2001). The cultural origins of human cognition. Cambridge, MA: Harvard University Press. pp. 56-78
   
2. 
   Trevarthen, C. (2011). Communication and cooperation in early infancy: A description of primary intersubjectivity. In M. Bullowa (Ed.) pp. 94-125
   
3. 
   Vygotsky, L. S. (2009). The genesis of higher mental functions. In J. V. Wertsch (Ed.), The concept of activity in Soviet Psychology (pp. 144–188). Armonk, NY: Sharpe.
   
4. 
   Wegerif, R., Mercer, N., & Dawes, L. (2002). From social interaction to individual reasoning: An empirical investigation of a possible sociocultural model of cognitive development. Learning and Instruction, 9, pp. 493–516
   
5. 
   Wells, G. (2006). The meaning makers: Children learning language and using language to learn. Portsmouth, NH: Heinemann pp. 158 - 176
   
6. 
   Wood, D. (2010). Teaching talk. In K. Norman (Ed.), Thinking voices: The work of the National Oracy Project (pp. 203–214). London: Hodder and Stoughton for the National Curriculum Council pp. 78-92
   
7. 
   Websites are useful :
   

https://en.wikipedia.org/wiki
https://literarydevices.net/
https://writingexplained.org/
https://www.litcharts.com/