Determination of on-the-Spot Occupational Elf Magnetic Field Levels in Hydro-Electric Power Transmission Switchyards. Nigerian Journal of Physics, [S. l.], v. 32, n. 2, p. 72–79, 2023. Disponível em: https://njp.nipngr.org/index.php/njp/article/view/84. Acesso em: 19 may. 2025.