http://e-repository.perpus.iainsalatiga.ac.id/10763
http://e-repository.perpus.iainsalatiga.ac.id/11618
http://e-repository.perpus.iainsalatiga.ac.id/11989
http://e-repository.perpus.iainsalatiga.ac.id/13116
http://e-repository.perpus.iainsalatiga.ac.id/13145