http://e-repository.perpus.iainsalatiga.ac.id/10382
http://e-repository.perpus.iainsalatiga.ac.id/10481
http://e-repository.perpus.iainsalatiga.ac.id/10445
http://e-repository.perpus.iainsalatiga.ac.id/10922
http://e-repository.perpus.iainsalatiga.ac.id/10164