4[1]Ovando, Carlos J. Bilingual education in the United States: Historical development and current issues[J].Bilingual Research Journal. Spring 2003. [M].http://www.findarticles.com
5[2]Lau v. Nichols 414 U.S 563. 1974. http://www.civilrights.org/issues/enforcement/details.
6[3]Crawford, J. Bilingual education: History, politics, theory and practice(4th ed.)[M].1999. http://ourworld.compuserve.com/homepages/JWCRAWFORD/home.html
