How to Import and Export MP3 Audio in Audacity - YouTube
How to Export Audio in Audacity: 5 Steps (with Pictures) - wikiHow
How to export Audacity files as MP3 - YouTube
HOW TO – Export an mp3 from Audacity for Windows | Digital Writing 101
Audacity tutorial: Converting to mp3 or AAC and other formats, example: Matthew Smith - epic orchestral synth music for film and game effects; Buanzo's LAME mp3 library