Ole K2
http://e-repository.perpus.iainsalatiga.ac.id/8445
http://e-repository.perpus.iainsalatiga.ac.id/8319
http://e-repository.perpus.iainsalatiga.ac.id/8001/
http://e-repository.perpus.iainsalatiga.ac.id/7776/
//e-repository.perpus.iainsalatiga.ac.id/8750