B. Kamaraj, R. Vasuki. Oscillation Criteria of Second Order Difference Equation With Negative Nonlinear Neutral Term. Int. J. Math. And Appl. [Internet]. 2017 Jun. 15 [cited 2024 May 18];5(2 - C):411-9. Available from: http://ijmaa.in/index.php/ijmaa/article/view/835