Nwaobi, E. E., Eje , B. and Abonyi, O. (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), pp. 1–15. doi: 10.5281/zenodo.10179326.