Tariq , M., Suleman , M., Awan , S. khan, Kuma, P. and Shaikh , A.A. 2023. Delay Differential-Algebraic Equations (DDAEs). Babylonian Journal of Mathematics. 2023, (Aug. 2023), 40–44. DOI:https://doi.org/10.58496/BJM/2023/008.