- RT @johnpmayer: @pressbooks powers part of @caliorg's FREE casebooks at https://t.co/8g9LQVUo84. (CC licensed, download PDF, Word, ebook v… #
- RT @emasters: @bjchapm @johnpmayer @caliorg And we have a few open source projects of our own. See https://t.co/bwVurF5JdZ #
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