File:Pressey Testing Machine 1.jpg - Wikipedia
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Frontiers What is conservation paleobiology? Tracking 20 years of research and development
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Priorities for conserving the world's terrestrial mammals based on over-the-horizon extinction risk - ScienceDirect
Computer-Assisted Learning
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Sidney Pressey's Automatic Teacher connecting data to information to knowledge
The Far-Reaching Legacy of the First 'Teaching Machines
AfriMAB: Biosphere Reserves in Sub-Saharan Africa; showcasing sustainable development
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