16GB MacBook Pro RAM Upgrade (2011/2012/2013) - YouTube
MacBook Pro 13" Unibody Early 2011 RAM Replacement - iFixit Repair Guide
Upgrade Your Macbook Pro (SSD Upgrade, RAM Upgrade, Optical Drive Bay Adapter) - YouTube
OWC 16GB (2x8GB) ram Upgrade PC3-12800 DDR3L 1600MHz sodimm 204 Pin CL11 Memory Upgrade Kit Compatible with Late iMac, Mac Mini, and MacBook Pro Computer at Amazon.com
How to Upgrade MacBook Pro RAM (2009, 2010, 2011, 2012): EveryMac.com
MacBook Pro 13" Unibody Early 2011 RAM Replacement - iFixit Repair Guide
Display Quality & Peripherals - Apple 15-inch MacBook Pro (Late 2011) Review
How to Upgrade MacBook Pro RAM (2009, 2010, 2011, 2012): EveryMac.com
Macbook Pro 13" 2011 MC700LL/A i5 2.3GHz 4GB RAM 320GB HDD Mac | eBay
Upgrading the Late 2011 MacBook Pro to 16 GB of RAM! - YouTube