How to design and code Alexa skills for Amazon's Echo Show
Alexa Skills Kit Official Site: Build Skills for Voice
GitHub - alexa/alexa-skills-kit-sdk-for-nodejs: The Alexa Skills Kit SDK for Node.js helps you get a skill up and running quickly, letting you focus on skill logic instead of boilerplate code.
How to Build a Multi-Language Alexa Skill : Alexa Blogs
Amazon Alexa Skills Development Costs Even Less Now, It's Practically Free - 1redDrop
5 Alexa Development Framework Options and Which To Use