http://e-repository.perpus.iainsalatiga.ac.id/8578
http://e-repository.perpus.iainsalatiga.ac.id/8296
http://e-repository.perpus.iainsalatiga.ac.id/8490
http://e-repository.perpus.iainsalatiga.ac.id/7755/
Ole K2
http://e-repository.perpus.iainsalatiga.ac.id/8319