1. Pathways to the peak of Mount Piaget and Vygotsky: Speaking and cognizing monolingually and bilingually;Bain,1996
2. The development of children;Cole,1996
3. Childhood and society;Erikson,1963
4. The structure of communicative choice;Ervin-Tripp,1970
5. Code-switching and code-mixing: The case of a child learning English and Chinese simultaneously;Kwan-Terry;Journal of Multilingual and Multicultural Development,1992