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MacBook Pro: How to remove or install memory - Apple Support
Macbook Pro(Retina 13inch, Late 2013) up … - Apple Community
MacBook Pro Retina 2013 teardown: Tough fix, good parts - CNET
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16GB MacBook Pro RAM Upgrade (2011/2012/2013) - YouTube
Upgrading Ram in a Macbook Pro 13" | How to Upgrade Ram on 13" Macbook Pro - YouTube