http://e-repository.perpus.iainsalatiga.ac.id/8703
http://e-repository.perpus.iainsalatiga.ac.id/9033
http://e-repository.perpus.iainsalatiga.ac.id/9405
http://e-repository.perpus.iainsalatiga.ac.id/9584
http://e-repository.perpus.iainsalatiga.ac.id/9565