http://e-repository.perpus.iainsalatiga.ac.id/15296
http://e-repository.perpus.iainsalatiga.ac.id/15265
http://e-repository.perpus.iainsalatiga.ac.id/15179
http://e-repository.perpus.iainsalatiga.ac.id/14856
http://e-repository.perpus.iainsalatiga.ac.id/14791