Okrah, S. K., E. N. . Wiah, H. Otoo, and Justice Kangah. “Application of a Modified ACO Algorithm for Optimizing Routes and Externality Effect of Solid Waste Management”. American Scientific Research Journal for Engineering, Technology, and Sciences, vol. 93, no. 1, June 2023, pp. 140-55, https://asrjetsjournal.org/index.php/American_Scientific_Journal/article/view/8961.