Buku Matematika Kelas 8 Semest is an Android application developed by Pustaka Biru that serves as an electronic textbook for mathematics. It is specifically designed for students in Grade 8 of junior high school. The app is free to download and use, and it is categorized under Education & Reference.

This app is a revised edition of the electronic textbook for Mathematics Semester 2 for Grade 8 junior high school students. Its purpose is to help students in the learning process of mathematics. The app contains various chapters, including Teorema Pythagoras, Lingkaran, Bangun Ruang Sisi Datar, Statistika, and Peluang. The content is based on the 2013 Curriculum, which has been revised in 2017.