http://e-repository.perpus.iainsalatiga.ac.id/16167
http://e-repository.perpus.iainsalatiga.ac.id/15587
http://e-repository.perpus.iainsalatiga.ac.id/15643
http://e-repository.perpus.iainsalatiga.ac.id/17598
http://e-repository.perpus.iainsalatiga.ac.id/17462
http://e-repository.perpus.iainsalatiga.ac.id/17768