http://e-repository.perpus.iainsalatiga.ac.id/11722
http://e-repository.perpus.iainsalatiga.ac.id/12325
http://e-repository.perpus.iainsalatiga.ac.id/12334
http://e-repository.perpus.iainsalatiga.ac.id/12468
http://e-repository.perpus.iainsalatiga.ac.id/12361
http://e-repository.perpus.iainsalatiga.ac.id/11680