http://e-repository.perpus.iainsalatiga.ac.id/16196
http://e-repository.perpus.iainsalatiga.ac.id/16168
http://e-repository.perpus.iainsalatiga.ac.id/16103
http://e-repository.perpus.iainsalatiga.ac.id/17515
http://e-repository.perpus.iainsalatiga.ac.id/17408
http://e-repository.perpus.iainsalatiga.ac.id/17288