Takuma Kubohara, Hiroyuki Ii. CU, CO AND NI CONTAMINATION INDEX FOR RIVER USING RIVER INSECTS AND RIVER PLANTS . INTERNATIONAL JOURNAL OF GEOMATE [Internet]. 2017 Oct. 11 [cited 2024 Apr. 20];11(26):2651-8. Available from: https://geomatejournal.com/geomate/article/view/2662