http://e-repository.perpus.iainsalatiga.ac.id/8900
http://e-repository.perpus.iainsalatiga.ac.id/9259
http://e-repository.perpus.iainsalatiga.ac.id/9919
http://e-repository.perpus.iainsalatiga.ac.id/9909
http://e-repository.perpus.iainsalatiga.ac.id/9058