http://e-repository.perpus.iainsalatiga.ac.id/9909
http://e-repository.perpus.iainsalatiga.ac.id/10066
http://e-repository.perpus.iainsalatiga.ac.id/9821
http://e-repository.perpus.iainsalatiga.ac.id/9435
http://e-repository.perpus.iainsalatiga.ac.id/9131
http://e-repository.perpus.iainsalatiga.ac.id/9119
c 1.2 olah