Electronic School Book (BSE) Science for Middle School / MTs Class 7 Semester I 2013 Curriculum. This application was created to make it easier for students to study Natural Science anywhere and anytime. The 2013 BSE curriculum is a free student book whose copyright is owned by the Ministry of Education and Culture (Kemendikbud) which can be distributed to the public for free. The material in the application is sourced from https://buku.kemdikbud.go.id. This application is not an applicatio