Agba, Opue Job, Ikpeme Winifred Ikpeme, and Bankoli Bankong. “An Economic Appraisal of Ponzi Schemes and Living Standards in Nigeria: A Case of MMM, Ultimate-Cycler and Crowd-Rising in Calabar Metropolis Bar Meteropolis”. Journal of Advance Research in Social Science and Humanities (ISSN 2208-2387) 4, no. 6 (June 30, 2018): 01–12. Accessed May 18, 2024. https://nnpub.org/index.php/SSH/article/view/121.