BALARABE, M. A. The Thirty Years Trend Analysis of Harmattan Season Visibility and Temperature in Sahel Zone of Nigeria. Physics Memoir - Journal of Theoretical & Applied Physics, [S. l.], v. 1, n. 1, p. 15–21, 2019. Disponível em: https://physicsmemoir.org.ng/index.php/pmjtap/article/view/3. Acesso em: 28 apr. 2025.