Ademola Shafiu Adewole, Abiodun Samuel Olowolafe, Taiwo Maryam Olajumoke, Shafiu Sabitiu Iyonhovue and Bello Mufutau Ademola 2026. Assessment of Impacts of Mobile Phone Usage on Sleep Quality and Concentration Among Undergraduate Students of Crescent University, Abeokuta. Interdisciplinary Journal Of Lifelong Learning. 2, 1 (Jul. 2026), 25-44. DOI:https://doi.org/10.52968/5608446.