http://e-repository.perpus.iainsalatiga.ac.id/8189/
http://e-repository.perpus.iainsalatiga.ac.id/7903
http://e-repository.perpus.iainsalatiga.ac.id/8350
http://e-repository.perpus.iainsalatiga.ac.id/8643
http://e-repository.perpus.iainsalatiga.ac.id/8333
http://e-repository.perpus.iainsalatiga.ac.id/8505
http://e-repository.perpus.iainsalatiga.ac.id/8313