SUPRAYOGI, D.; NENGSE, S.; HAKIM, A. Analisis Kualitas Air Sungai Bawah Tanah Gua Ngerong, Kecamatan Rengel, Tuban. Al-Ard: Jurnal Teknik Lingkungan, [S. l.], v. 5, n. 1, p. 45–53, 2019. DOI: 10.29080/alard.v5i1.748. Disponível em: https://jurnalsaintek.uinsby.ac.id/index.php/alard/article/view/748. Acesso em: 20 apr. 2024.