http://e-repository.perpus.iainsalatiga.ac.id/12904
http://e-repository.perpus.iainsalatiga.ac.id/13729
http://e-repository.perpus.iainsalatiga.ac.id/13900
http://e-repository.perpus.iainsalatiga.ac.id/14150
http://e-repository.perpus.iainsalatiga.ac.id/15185