Early 2015 MacBook Pro Retina 13 vs Late 2013 MacBook Pro Retina 13 - YouTube
Conclusion : MacBook Air vs. MacBook Pro: The battle of Apple's 13-inch notebooks - HardwareZone.com.sg
APPLE MACBOOK PRO 13 INCH RETINA 2015 UNBOXING and COMPARISON DEMO 4k 2160P - YouTube
MacBook Air Pros and Cons: 2013/2014/2015: EveryMac.com
Apple MacBook Pro 15-inch 2016 compared to the 2015 model: Here's what has changed | Technology News - The Indian Express
For people on budget (like me) this Retina Early 2013 15” is still an absolute monster : r/macbookpro
Amazon.com: NinjaBatt Battery A1502 A1582 for Apple MacBook Pro Retina 13” A1493 [Early 2015 Mid 2014 Late 2013] - Long Lasting [71.8Wh/11.43V] : Electronics
13" MacBook Pro Retina vs 15" Retina MacBook Pro (2015) Comparison - Laptop Comparisons by MobileTechReview
MacBook Pro - Wikipedia
15" Macbook Pro with Retina Display 2.3GHz Late 2013 vs 13" Macbook Pro with Retina 2.4GHz Late 2013 - YouTube
Apple MacBook Pro 13 Retina, Late 2013, A1502, i5 2.4 GHz, ...