A systems approach to improving K-12 STEM education : hearing before the Subcommittee on Research and Science Education, Committee on Science and Technology, House of Representatives, One Hundred Eleventh Congress, first session, July 30, 2009.
U.S. Government Printing Office,
|Series:||U.S. Congressional documents. Congressional hearings.
|Online Access:||HeinOnline U.S. Congressional Documents Collection|
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