http://e-repository.perpus.iainsalatiga.ac.id/14491
http://e-repository.perpus.iainsalatiga.ac.id/15183
http://e-repository.perpus.iainsalatiga.ac.id/14810
http://e-repository.perpus.iainsalatiga.ac.id/14833
http://e-repository.perpus.iainsalatiga.ac.id/15893