http://e-repository.perpus.iainsalatiga.ac.id/8242
http://e-repository.perpus.iainsalatiga.ac.id/9345
http://e-repository.perpus.iainsalatiga.ac.id/9346
http://e-repository.perpus.iainsalatiga.ac.id/9506
http://e-repository.perpus.iainsalatiga.ac.id/9396