受强制性开放获取政策约束的文章 - Stephen Porter了解详情
可在其他位置公开访问的文章：2 篇
Competency-Based Education and Federal Student Aid.
SR Porter
Journal of Student Financial Aid 46 (3), 2, 2016
强制性开放获取政策： Bill & Melinda Gates Foundation
The development and validation of the instructional practices log in science: A measure of K-5 science instruction
EL Adams, SJ Carrier, J Minogue, SR Porter, A McEachin, TA Walkowiak, ...
International Journal of Science Education 39 (3), 335-357, 2017
强制性开放获取政策： US National Science Foundation
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