http://e-repository.perpus.iainsalatiga.ac.id/12145
http://e-repository.perpus.iainsalatiga.ac.id/12193
http://e-repository.perpus.iainsalatiga.ac.id/12228
http://e-repository.perpus.iainsalatiga.ac.id/12041
http://e-repository.perpus.iainsalatiga.ac.id/12043