DETERMINATION OF WATER QUALITY FROM BOREHOLE SOURCES  IN OVIA NORTH EAST COMMUNITIES, EDO STATE, NIGERIA. EDOCOE Technical and Vocational Education and Training Research Journal (EDOCOETEVTRJ), [S. l.], v. 1, n. 1, p. 59–68, 2024. Disponível em: https://www.edocoejournal.com/journal/article/view/53.. Acesso em: 30 may. 2026.