http://e-repository.perpus.iainsalatiga.ac.id/17558
http://e-repository.perpus.iainsalatiga.ac.id/17662
http://e-repository.perpus.iainsalatiga.ac.id/17836
http://e-repository.perpus.iainsalatiga.ac.id/19030
http://e-repository.perpus.iainsalatiga.ac.id/18517
http://e-repository.perpus.iainsalatiga.ac.id/18410