http://e-repository.perpus.iainsalatiga.ac.id/15899
http://e-repository.perpus.iainsalatiga.ac.id/17554
http://e-repository.perpus.iainsalatiga.ac.id/17598
http://e-repository.perpus.iainsalatiga.ac.id/17835
http://e-repository.perpus.iainsalatiga.ac.id/17831
http://e-repository.perpus.iainsalatiga.ac.id/14527