Nwaobi, Emeka Emmanuel, Brendan Eje, and Obianuju Abonyi. 2023. “THE CAUSES AND ECONOMIC IMPACT OF FREQUENT VEHICLE BREAKDOWN IN NIGERIA: A CASE STUDY OF DELTA STATE”. International Journal of Interdisciplinary Research in Statistics, Mathematics and Engineering (IJIRSME) 10 (4):1-15. https://doi.org/10.5281/zenodo.10179326.