http://e-repository.perpus.iainsalatiga.ac.id/19356
http://e-repository.perpus.iainsalatiga.ac.id/18968
http://e-repository.perpus.iainsalatiga.ac.id/19016
http://e-repository.perpus.iainsalatiga.ac.id/19929
http://e-repository.perpus.iainsalatiga.ac.id/19624