http://e-repository.perpus.iainsalatiga.ac.id/19043
http://e-repository.perpus.iainsalatiga.ac.id/19122
http://e-repository.perpus.iainsalatiga.ac.id/19903
http://e-repository.perpus.iainsalatiga.ac.id/19932
http://e-repository.perpus.iainsalatiga.ac.id/20063