https://leanpub.com/c/leanpub/kotlinessentials
Kotlin Essentials
Want to learn how to use Kotlin? This practical course presents the most important Kotlin features, together with the best practices for using them.
kotlin essentials
https://rockthejvm.com/courses/kotlin-essentials
Kotlin Essentials | Rock the JVM
Become a Kotlin developer with our essentials course. Master the fundamentals of Kotlin through clear lessons, practical exercises, and a smooth learning...
rock the jvmkotlin essentials