http://e-repository.perpus.iainsalatiga.ac.id/18500
http://e-repository.perpus.iainsalatiga.ac.id/15192
http://e-repository.perpus.iainsalatiga.ac.id/18433
http://e-repository.perpus.iainsalatiga.ac.id/19189
http://e-repository.perpus.iainsalatiga.ac.id/19914
http://e-repository.perpus.iainsalatiga.ac.id/19902