http://e-repository.perpus.iainsalatiga.ac.id/10138
http://e-repository.perpus.iainsalatiga.ac.id/10454
http://e-repository.perpus.iainsalatiga.ac.id/10421
http://e-repository.perpus.iainsalatiga.ac.id/10308
http://e-repository.perpus.iainsalatiga.ac.id/11235