RIANTI, Suratniaf. MODEL SEBARAN TINGKAT PENCEMARAN LOGAM BERAT MENGGUNAKAN GEOGRAPHIC INFORMASI SITEM (GIS) DAERAH ALIRAN SUNGAI DELI SUMATERA UTARA. Agroprimatech, [S. l.], v. 3, n. 2, p. 1–10, 2020. Disponível em: https://jurnal.unprimdn.ac.id/index.php/Agroprimatech/article/view/818. Acesso em: 8 dec. 2025.