Subaramaniyam Jaikumar, Kandasamy Alagesan and Govindasamy Ayyappan 2020. New oscillation criteria for fourth order delay difference equations with damping. Malaya Journal of Matematik. 8, 03 (Jul. 2020), 838–844. DOI:https://doi.org/10.26637/MJM0803/0018.