HARYATI, T. “The THE ROLE OF THE ENVIRONMENT SERVICE IN CREATING A CLEAN CITY IN WAMENA CITY”. Jurnal Ilmiah Pendidikan Lingkungan Dan Pembangunan, Vol. 22, no. 02, Apr. 2022, pp. 46 -55, http://103.8.12.212:33180/unj/index.php/plpb/article/view/22124.