http://e-repository.perpus.iainsalatiga.ac.id/10894
http://e-repository.perpus.iainsalatiga.ac.id/11373
http://e-repository.perpus.iainsalatiga.ac.id/12295
http://e-repository.perpus.iainsalatiga.ac.id/12097
http://e-repository.perpus.iainsalatiga.ac.id/12733