Presenting an independent class 9 informatics student's book to realize the program at the educational unit level.
This application was created to make it easier for students to learn more flexibly anytime and anywhere.

Main features of the app:
1. Display each chapter
2. The responsive display is easy to use and can be enlarged.
3. Fast page search.
4. Minimalist landscape display.

The material discussed in each chapter is class 9 informatics material
Chapter 1: Middle School Informatics
Chapter 2: Computational thinking
Chapter 3: Information and communication technology
Chapter 4: Computer systems

NOTE: This class 9 student informatics book application is a free book whose copyright is owned by the Ministry of Education and Culture and can be distributed to the public for free.