MacBook Pro: How to remove or install memory - Apple Support
Apple MacBook Pro 2009 (Early) 13-inch 15-inch 17-inch MacBookPro5,1 MacBookPro5,2 MacBookPro5,3 MacBookPro5,4 MacBookPro5,5 SSD RAM OSX UPGRADE - ZD Laptop Service Centre
Timetec Hynix IC 16GB KIT(2x8GB) Compatible for Apple DDR3 PC3-8500 1067MHz/1066MHz Upgrade for MacBook 13'' Mid 2010, MacBook Pro 13'' Mid 2010, iMac 27''Late 2009, Mac Mini Mid 2010(16GB KIT(2x8GB)) - Newegg.com
13-inch MacBook Late 2009 & 2010 Memory Installation Video - YouTube