6Weaver, C.A.,& Kintsch,W.(1991/1996).Expository text. In R. Barr, M. L. Kamil, P. Mosenthal, & P. D. Pearson (Eds.), Handbook of reading research (2).Mahwah, NJ: Lawrence Erl- baum.
7Mary Lee Bass, Deborah Gee Woo.(2008). Comprehen- sion Windows Strategy: A Comprehension Strategy and Prop for Reading and Writing Informational Text. The Reading Teacher, 61(7).
8National Governors Association Center for Best Practices, Council of Chief State School Otticers.(2010).Common Core State Standards for English Language Arts & Literacy in History/Social Studies Science, and Technical Subjects. Washington D.C.
9Nell K. Duke.(2004).The Case for Informational Text. E- ducation Leadership, (3).
10National Assessment Governing Board.(2008). Reading framework for the 2009 National Assessment of Educational Progress. Washington, DC: U.S. Government Printing Ogice.