http://e-repository.perpus.iainsalatiga.ac.id/9329
http://e-repository.perpus.iainsalatiga.ac.id/9728
http://e-repository.perpus.iainsalatiga.ac.id/9440
http://e-repository.perpus.iainsalatiga.ac.id/10143
http://e-repository.perpus.iainsalatiga.ac.id/9492
http://e-repository.perpus.iainsalatiga.ac.id/9791