http://e-repository.perpus.iainsalatiga.ac.id/17831
http://e-repository.perpus.iainsalatiga.ac.id/17835
http://e-repository.perpus.iainsalatiga.ac.id/17501
http://e-repository.perpus.iainsalatiga.ac.id/17562
http://e-repository.perpus.iainsalatiga.ac.id/16207
http://e-repository.perpus.iainsalatiga.ac.id/16489