http://e-repository.perpus.iainsalatiga.ac.id/9505
http://e-repository.perpus.iainsalatiga.ac.id/9209
http://e-repository.perpus.iainsalatiga.ac.id/8283
http://e-repository.perpus.iainsalatiga.ac.id/10094
http://e-repository.perpus.iainsalatiga.ac.id/9450
http://e-repository.perpus.iainsalatiga.ac.id/9636