AKPANSUNG, Aniekan O.; 						PETER, Amade.
 Demographic Changes and Economic Growth of Sub-Sahara Africa: A System GMM Approach.
<strong>NIU Journal of Social Sciences</strong>, [S.l.], v. 7, n. 3, p. 65-74, oct. 2021.
ISSN 3007-1690.
Available at: &lt;<a href="https://www.niujournals.ac.ug/ojs/index.php/niujoss/article/view/1298" target="_new">https://www.niujournals.ac.ug/ojs/index.php/niujoss/article/view/1298</a>&gt;. Date accessed: 26 may 2026.