Electronic School Book (BSE) Social Sciences for Middle School / MTs Class IX Curriculum 2013. This application was created to make it easier for students to study Social Sciences 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://www.kemdikbud.go.id. The application helps provide these learnin