http://e-repository.perpus.iainsalatiga.ac.id/19082
http://e-repository.perpus.iainsalatiga.ac.id/19412
http://e-repository.perpus.iainsalatiga.ac.id/19193
http://e-repository.perpus.iainsalatiga.ac.id/19156
http://e-repository.perpus.iainsalatiga.ac.id/19348