di k2
http://e-repository.perpus.iainsalatiga.ac.id/13258
http://e-repository.perpus.iainsalatiga.ac.id/13246
http://e-repository.perpus.iainsalatiga.ac.id/13249
http://e-repository.perpus.iainsalatiga.ac.id/13267
http://e-repository.perpus.iainsalatiga.ac.id/13235