“The Relationship between Vehicular Maintenance and Exhaust Gas Emissions: A Comprehensive Multi-Parametric Empirical Study in Municipal Area in Calabar, Nigeria” (2026) Journal of Advanced Multidisciplinary Studies (JAMS),, pp. Page 143–149. Available at: https://jamsjournal.org/JAMS/article/view/535 (Accessed: 23 September 2026).