Okenwa, Wilfred O., Ikenna K. Ndu, Uchenna Ekwochi, Obinna C. Nduagubam, Ogechukwu F. Amadi, Isaac N. Asinobi, and Edmund N. Ossai. “Recognition and Interpretation of Road Signs by Commercial Drivers in Enugu Nigeria”. International Journal Of Community Medicine And Public Health 6, no. 10 (September 26, 2019): 4181–4186. Accessed March 30, 2026. https://www.ijcmph.com/index.php/ijcmph/article/view/5181.