Elviyanti, E. “KONSEP PENANGANAN LINGKUNGAN PERUMAHAN DAN PERMUKIMAN KUMUH DI NAGARI MUARO KABUPATEN SIJUNJUNG SUMATERA BARAT”. UNES Journal of Scientech Research, Vol. 3, no. 2, Sept. 2019, pp. 175-89, https://ojs.ekasakti.org/index.php/UJSR/article/view/156.