NWAOGU, Chukwudi et al.
 Soil dynamics, conservation and food supply in the grassland ecological zone of Sub-Sahara Africa: The need for sustainable agroecosystem management for maize (Zea mays).
<strong>Development, Environment and Foresight</strong>, [S.l.], v. 2, n. 2, p. 61-79, nov. 2016.
ISSN 2336-6621.
Available at: &lt;<a href="../../../../../index_php/def/article/view/32" target="_new">http://def-journal.eu/index.php/def/article/view/32</a>&gt;. Date accessed: 12 july 2020.