Kingsley Asogu Ogbonnaya (Ph.D), Oninyechi E. Okoye, Ogochukwu Vivian Nwaubani, Ann E Okechukwu, Elizabeth E. Obiozor, and Chibuike Darl Ochiagha, “Retirement Education for Sustainable Livelihood Among Staff of the University of Nigeria: Adult Education Perspective”, IJSBAR, vol. 65, no. 1, pp. 310–323, Dec. 2022.