DANG, Duc; DANG THI VIET, Duc.
The Concentration and Competition of Vietnam Mobile Telecommunications Market Through HHI and Elasticity of Demand 2.
VNU Journal of Science: Policy and Management Studies, [S.l.], v. 33, n. 2, june 2017.
Available at: <https://js.vnu.edu.vn/PaM/article/view/4087>. Date accessed: 29 mar. 2023.