http://e-repository.perpus.iainsalatiga.ac.id/10142
http://e-repository.perpus.iainsalatiga.ac.id/10366
http://e-repository.perpus.iainsalatiga.ac.id/10993
http://e-repository.perpus.iainsalatiga.ac.id/11312
http://e-repository.perpus.iainsalatiga.ac.id/11521