7Cummins, J.. Language Learning and Bilingualism[M]. Tokyo: Sophia University (Sophia Linguistica Monograph, 29). 1991.
8LOKE KIT- KEN, Policy Intentions and Policy Outcomes: A Comparative Perspective on the Singapore Bilingual Education System[J]. Compare 1995.
9S. Gopinathan, Anne Pakir, Ho Wah Kam, and Vanithamani Saravanan (eds.)Langtage, Society and Education in Singapore: Issues and Trends Singapore[M] .Times Academic Press. 1998.
10Olga. M. Amaral, Parents' Decisions about Bilingual Program Models, Bilingual Research Journal. 2001. Vo125.