S. H. Saker, and M. A. Arahet. “New Oscillation Criteria of First Order Neutral Delay Difference Equations of Emden-Fowler Type”. Journal of Computational Analysis and Applications (JoCAAA) 29, no. 2 (March 23, 2021): 252–265. Accessed December 18, 2024. https://eudoxuspress.com/index.php/pub/article/view/146.