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- CK-12 21st Century Physics - A Compilation of Contemporary and Emerging Technologies
CK12 Foundation
$1.99 -
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- Krugman's Economics for AP* (High School), 2nd edition ebook (1 year access)
Macmillan Publishers (BFW)
$98.99 - Scientific American Environmental Science for a Changing World, 2nd Edition ebook (365 day access)
Macmillan Publishers (BFW)
$65.80