How to Upgrade MacBook Pro RAM (2009, 2010, 2011, 2012): EveryMac.com
Configure your own 13-inch Apple MacBook Pro (2012) at OWC
Apple MacBook Pro 13 inch 2012-06 MD101LL/A - Notebookcheck.net External Reviews
Timetec 16GB KIT(2x8GB) Compatible for Apple DDR3L 1600MHz for Mac Book Pro (Early/Late 2011,Mid 2012), iMac(Mid 2011,Late 2012,Early/Late 2013,Late 2014,Mid 2015), Mac Mini(Mid 2011,Late 2012) MAC RAM at Amazon.com
Teardown of Mid-2012 MacBook Air Reveals Tweaked SSD Connector - MacRumors
MacBook Pro: How to remove or install memory - Apple Support
13-inch Retina MacBook Pro Review (Late 2012)
13-inch Retina MacBook Pro Review (Late 2012)
My maxed out Mid-2012 13 inch MBP - 16GB of ram and 1.2TB of SSD! : r/mac
Apple MacBook Pro 13-inch (Mid 2012)
Mid 2012 13" inch MacBook Pro A1278 Disassembly RAM SSD Hard Drive Upgrade Repair OSX Install - YouTube
Buy Refurbished 2012 Apple MacBook Pro MD101LL/A 13" Laptop 2.5GHz - 3.1GHz Core i5 - Techable