G. A. Ma’dika, D. Raharjo, and K. Kisworo, “Relation Between Chromium Contaminant Profile and Mollusk Community Structure In Opak River: HUBUNGAN PROFIL CEMARAN KROMIUM DENGAN STRUKTUR KOMUNITAS MOLUSKA DI SUNGAI OPAK”, Biospecies, vol. 14, no. 1, pp. 67–74, Feb. 2021.