A free program for Android, by Pustaka Dewi.

The Chemistry Textbook is a free educational app. It contains a complete text-book of chemistry with many chapters.

This is a very good text book for students and people who are interested in the subject of chemistry.

You can use it for reference and also for the preparation of your exam.

The content of this text book has been organized in a very logical and easy-to-use way. It is very easy to find the content you are looking for.

It also contains many figures and diagrams that help you better understand the concepts and topics covered in this text book.

This app is very easy to use and comprehend.