SINAGA, Agnes; PANDIANGAN, Errason; SINURAT, Ester; ANGGI, Ika; RAHMAT, Riki; YUNIASTUTY, Eni. Upaya Mengurangi Pencemaran Sungai Denai. Pelita : Jurnal Penelitian dan Karya Ilmiah, [S. l.], v. 26, n. 2, p. 246–250, 2026. DOI: 10.33592/pelita.v26i2.7553. Disponível em: https://ejournal.unis.ac.id/index.php/pelita/article/view/7553. Acesso em: 24 jul. 2026.