VARIATIONS OF WATER QUALITY ALONG ACIDIC RIVERS IN VOLCANIC AREAS OF EASTERN JAPAN. International Journal of Geomate, [S. l.], v. 19, n. 71, p. 36–41, 2020. Disponível em: https://geomatejournal.com/geomate/article/view/808. Acesso em: 19 oct. 2026.