http://e-repository.perpus.iainsalatiga.ac.id/19292
http://e-repository.perpus.iainsalatiga.ac.id/19109
http://e-repository.perpus.iainsalatiga.ac.id/19195
http://e-repository.perpus.iainsalatiga.ac.id/19016
http://e-repository.perpus.iainsalatiga.ac.id/19043