Adams, Daniel, Mathew Omeike, Idowu Osinuga, and Biodun Badmus. “On the Stability and Boundedness of Solutions of Certain Kind of Second Order Delay Differential Equations: On the Stability and Boundedness”. Journal of the Nigerian Mathematical Society 42, no. 1 (April 24, 2023): 49–59. Accessed April 18, 2024. https://ojs.ictp.it/jnms/index.php/jnms/article/view/877.