DEBATARAJA, Semangat Marudut Tua; 						PARDEDE, Jubel.
 STUDI PENYEBAB TERJADINYA LONGSOR PADA JALAN PROVINSI LINTAS SIPAHUTAR-PANGARIBUAN DESA SIABAL-ABAL II.
<strong>Jurnal Darma Agung</strong>, [S.l.], v. 28, n. 1, p. 31 - 38, may 2020.
ISSN 2654-3915.
Available at: &lt;<a href="https://ejurnal.darmaagung.ac.id/index.php/jurnaluda/article/view/457" target="_new">https://ejurnal.darmaagung.ac.id/index.php/jurnaluda/article/view/457</a>&gt;. Date accessed: 23 dec. 2024.
doi: <a href="http://dx.doi.org/10.46930/ojsuda.v28i1.457">http://dx.doi.org/10.46930/ojsuda.v28i1.457</a>.