http://e-repository.perpus.iainsalatiga.ac.id/19914
http://e-repository.perpus.iainsalatiga.ac.id/20374
http://e-repository.perpus.iainsalatiga.ac.id/20077
http://e-repository.perpus.iainsalatiga.ac.id/19884
http://e-repository.perpus.iainsalatiga.ac.id/19908