Yousuf S. Mahmoud, Inas A Ibrhim and Omar A. Emjahed (2025) “Periodic Solutions for A Class of Integro-Differential Equations with Vriable Delay and Exponential Nonlinearity”, Libyan Journal of Medical and Applied Sciences, 3(3), pp. 152–156. doi: 10.64943/ljmas.v3i3.169.