A comparative analysis of the perceived influence of advanced placement and honors programs upon science instruction. Herr NE. NE Herr - Journal of Research in Science Teaching, 1992 - Wiley Online Library GSID: yuSOntD0EUIJ
Advanced Placement and International Baccalaureate Programs: A. [No authors listed] H Hertberg-Davis, CM Callahan, RM Kyburg - National Research Center on …, 2006 - ERIC GSID: G9L9QluZrLIJ
Advanced Placement and International Baccalaureate Programs for Talented Students in American High Schools: A Focus on Science and Mathematics. [No authors listed] CM Callahan - National Research Center on the Gifted and Talented, 2003 - ERIC GSID: KZPzLcjESsUJ
