http://e-repository.perpus.iainsalatiga.ac.id/16116
http://e-repository.perpus.iainsalatiga.ac.id/17821
http://e-repository.perpus.iainsalatiga.ac.id/17415
http://e-repository.perpus.iainsalatiga.ac.id/17975
http://e-repository.perpus.iainsalatiga.ac.id/18319
http://e-repository.perpus.iainsalatiga.ac.id/19057