Ole K2
http://e-repository.perpus.iainsalatiga.ac.id/7755/
http://e-repository.perpus.iainsalatiga.ac.id/8319
http://e-repository.perpus.iainsalatiga.ac.id/8445
http://e-repository.perpus.iainsalatiga.ac.id/8296
http://e-repository.perpus.iainsalatiga.ac.id/8590
http://e-repository.perpus.iainsalatiga.ac.id/8578