AI-MAHDI, H.A.; 						MOKHEBER, A.F..
 A study of Geomagnetic Field and It's secular variation at the Location Brazilian Anomaly (25°S, 45°W)..
<strong>Ibn AL- Haitham Journal For Pure and Applied Science</strong>, [S.l.], v. 21, n. 1, p. 27-34, sep. 2017.
ISSN 2521-3407.
Available at: &lt;<a href="http://jih.uobaghdad.edu.iq/index.php/j/article/view/1370" target="_new">http://jih.uobaghdad.edu.iq/index.php/j/article/view/1370</a>&gt;. Date accessed: 22 nov. 2019.