INVESTIGATING THE VARIATIONS OF HORIZONTAL (H) AND VERTICAL (Z) COMPONENTS OF THE GEOMAGNETIC FIELD AT SOME EQUATORIAL ELECTROJET STATIONS. FUDMA JOURNAL OF SCIENCES, [S. l.], v. 5, n. 1, p. 539–557, 2021. DOI: 10.33003/fjs-2021-0501-661. Disponível em: https://fjs.fudutsinma.edu.ng/index.php/fjs/article/view/661. Acesso em: 5 sep. 2025.