ROIS, Mulza; ANDRIZAL, Andrizal. Dampak Penambangan Batubara Terhadap Kualitas Air Sungai Batang Manggilang di jorong Sebrang Pasar Kenagarian Manggilang Kabupaten 50 Kota. JURNAL GEOGRAFI, [S. l.], v. 10, n. 2, p. 184–190, 2018. DOI: 10.24114/jg.v10i2.10420. Disponível em: http://103.242.233.34/index.php/geo/article/view/10420. Acesso em: 19 jan. 2025.