http://e-repository.perpus.iainsalatiga.ac.id/17911
http://e-repository.perpus.iainsalatiga.ac.id/17348
http://e-repository.perpus.iainsalatiga.ac.id/17941
http://e-repository.perpus.iainsalatiga.ac.id/18546
http://e-repository.perpus.iainsalatiga.ac.id/18076
http://e-repository.perpus.iainsalatiga.ac.id/19293