Nafisah, Nafisah, Manyuk Fauzi, and Andy Hendri. 2019. “Analisis Indikator Klasifikasi DAS Kampar Kanan Berdasarkan Kriteria Tata Air”. SAINSTEK 7 (1):40-47. https://ejournal.sttp-yds.ac.id/index.php/js/article/view/69.