http://e-repository.perpus.iainsalatiga.ac.id/19902
http://e-repository.perpus.iainsalatiga.ac.id/19043
http://e-repository.perpus.iainsalatiga.ac.id/19085
http://e-repository.perpus.iainsalatiga.ac.id/19793
http://e-repository.perpus.iainsalatiga.ac.id/19908