Aris, Muhammad, and Tamrin Tamrin. “Heavy Metal (Ni, Fe) Concentration in Water and Histopathological of Marine Fish in the Obi Island, Indonesia”. Jurnal Ilmiah PLATAX, vol. 8, no. 2, Nov. 2020, pp. 221-33, doi:10.35800/jip.8.2.2020.30673.