An Analytical Solution for Advection-Diffusion Equation with Advection–Dominated Term using Multiple-Scale Expansion Methods. J. Phys. Soc. Ind. [Internet]. 2025 Oct. 26 [cited 2026 Mar. 4];1(2):123-35. Available from: http://journal.fisika.or.id/index.php/jpsi/article/view/52