Thieu, T., & 		Hinh, P.
(2007).
 Algorithm for solution of  a routing problem.
<em>VNU Journal Of Science: Mathematics - Physics, 23</em>(3).
Retrieved from <a href="https://js.vnu.edu.vn/MaP/article/view/2079" target="_new">https://js.vnu.edu.vn/MaP/article/view/2079</a>