Adam, A.
(2016).
 Linear Possibility Model with Interactions for Ordered Categorical Data.
<em>Gezira Journal Of Economic And Social Sciences, 7</em>(1).
Retrieved from <a href="http://37.60.236.48/index.php/gjess/article/view/752" target="_new">http://37.60.236.48/index.php/gjess/article/view/752</a>