http://e-repository.perpus.iainsalatiga.ac.id/12257
http://e-repository.perpus.iainsalatiga.ac.id/17342
http://e-repository.perpus.iainsalatiga.ac.id/17783
http://e-repository.perpus.iainsalatiga.ac.id/18845
http://e-repository.perpus.iainsalatiga.ac.id/18228
http://e-repository.perpus.iainsalatiga.ac.id/18622