<https://jostmed.futminna.edu.ng/index.php/archives/item/24-jostmed-15-2-june-2019>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://jostmed.futminna.edu.ng/index.php/archives/item/24-jostmed-15-2-june-2019>