Now Here's a MacBook Pro That's Easy to Repair | WIRED
Upgrade RAM On Your 2009-2012 13-inch MacBook Pro - Tech Genesis
16GB RAM Upgrade for the MacBook Pro — Robert OToole Photography
MacBook Pro 15" Retina Display Mid 2012 Teardown - iFixit
Samsung ram Memory Upgrade DDR3 PC3 12800, 1600MHz, 204 PIN, SODIMM for 2012 Apple MacBook Pro's, 2012 iMac's, and 2011/2012 Mac Mini's (16GB kit (2 x 8GB)) at Amazon.com