http://e-repository.perpus.iainsalatiga.ac.id/8283
http://e-repository.perpus.iainsalatiga.ac.id/9057
http://e-repository.perpus.iainsalatiga.ac.id/9195
http://e-repository.perpus.iainsalatiga.ac.id/9662
http://e-repository.perpus.iainsalatiga.ac.id/9654