http://e-repository.perpus.iainsalatiga.ac.id/11280
http://e-repository.perpus.iainsalatiga.ac.id/11268
http://e-repository.perpus.iainsalatiga.ac.id/10795
http://e-repository.perpus.iainsalatiga.ac.id/11999
http://e-repository.perpus.iainsalatiga.ac.id/12273
http://e-repository.perpus.iainsalatiga.ac.id/11270