http://e-repository.perpus.iainsalatiga.ac.id/13258
di k2
http://e-repository.perpus.iainsalatiga.ac.id/11486
http://e-repository.perpus.iainsalatiga.ac.id/10839
http://e-repository.perpus.iainsalatiga.ac.id/10802
http://e-repository.perpus.iainsalatiga.ac.id/11510