开放教学与学术演示资源，共 17 页。原作者：Richard M Williams; Craig E Aalseth; Jill M Brandenberger; Anthony R Day; Erin Finn; Erin S Fuller; Eric W Hoppe; Paul H Humble; Martin E Keillor; Emily K Mace; Allan W Myers; Cory T Overman; Mark E Panisko; Allen Seifert; Signe K White。保留原文件语言与内容。
资源署名：Richard M Williams; Craig E Aalseth; Jill M Brandenberger; Anthony R Day; Erin Finn; Erin S Fuller; Eric W Hoppe; Paul H Humble; Martin E Keillor; Emily K Mace; Allan W Myers; Cory T Overman; Mark E Panisko; Allen Seifert; Signe K White · cc-by-4.0 · 原始来源
