D. N. . Rikhmasari, A. Herdianto, and A. R. Purwandari, “Biomonitoring Kali Asem Lumajang secara Mikrobiologi: Microbiological Biomonitoring of the Asem River in Lumajang”, JERNIH, vol. 2, no. 01, pp. 39–55, Feb. 2025.