http://e-repository.perpus.iainsalatiga.ac.id/14238
http://e-repository.perpus.iainsalatiga.ac.id/14025
http://e-repository.perpus.iainsalatiga.ac.id/14384
http://e-repository.perpus.iainsalatiga.ac.id/14491
http://e-repository.perpus.iainsalatiga.ac.id/14737