http://e-repository.perpus.iainsalatiga.ac.id/12221
http://e-repository.perpus.iainsalatiga.ac.id/12273
http://e-repository.perpus.iainsalatiga.ac.id/12210
http://e-repository.perpus.iainsalatiga.ac.id/12215
http://e-repository.perpus.iainsalatiga.ac.id/12184