http://e-repository.perpus.iainsalatiga.ac.id/16133
http://e-repository.perpus.iainsalatiga.ac.id/16346
http://e-repository.perpus.iainsalatiga.ac.id/15506
http://e-repository.perpus.iainsalatiga.ac.id/16180
http://e-repository.perpus.iainsalatiga.ac.id/15891
http://e-repository.perpus.iainsalatiga.ac.id/17839