GIT

Git Learning 

https://www.atlassian.com/git/tutorials/learn-git-with-bitbucket-cloud

Egit User Guide

http://wiki.eclipse.org/EGit/User_Guide

SourceTree

https://www.sourcetreeapp.com/

GitFlow

http://nvie.com/posts/a-successful-git-branching-model/

Git Workflows

https://www.atlassian.com/git/tutorials/comparing-workflows