4Jo Ellen Roseman, Lull Stern & Mary Koppal. A Method for Analyzing the Coherence of High School Biology Textbooks [J]. Journal of Research in Science Teaching, 2010,47(1): 48.
5Upper Dublin High School. Science(from 2013 to 2014)[EB/ OL]. http..//www, udsd. org/uploaded/Schools/UDHS/ Guidance/program_of_Studies/program of studies_13- 14/ Science. pdf. 2013 - 9 - 1.
6Casey Langer Tesfaye & Susan White. Focus on High School Physics Textbook: Results from the 2008 - 2009 National Survey of High School Physics Teachers(2010 -9)[EB/OL]. http://www, aip. org/statistics/trends/reports/hstextbooks. pdf. 2012- 12 - 30.
7Paul W. Zitzewitz. Physics: Principles and Problems (Teacher Wraparound Edition). Columbus:McGraw-Hill Company. 1999.
8Paul W. Zitzewitz. Physics: Principles and Problems (Student Teacher Essentials Edition ). Columbus: McGraw Hill Company. 2013.
9Paul G. Hewitt. Conceptual Physics (8th Edition). Massachusetts: Addison-Wesley Longman, Inc. 1998.
10Paul G. Hewitt. Conceptual Physics ( 11th Edition ). Illinois: Pearson Education, Inc. 2010.
