http://e-repository.perpus.iainsalatiga.ac.id/18508
http://e-repository.perpus.iainsalatiga.ac.id/18547
http://e-repository.perpus.iainsalatiga.ac.id/18538
http://e-repository.perpus.iainsalatiga.ac.id/19145
http://e-repository.perpus.iainsalatiga.ac.id/17794
http://e-repository.perpus.iainsalatiga.ac.id/19789