Guerrero_Jimenez, C. J.; Rabert, C. L.; Sáez-Arteaga, A.; Loncomán, N.; Torres, G.; Flores, T.; Llanquín-Rosas, F.; Valenzuela, M. L.; Moreno, R. EVALUATION OF BIOLOGICAL AND PHYSICOCHEMICAL RELATIONSHIPS AS INDICATORS OF WATER QUALITY IN TOLTÉN RIVER BASIN, ARAUCANÍA, CHILE: PRELIMINARY RESULTS. JCCHEMS 2021, 66, 5307-5311.