Umpai K. International Principles and Obligations concerning the Right to Access and Use Contracts for the Use of Vehicles in International Traffic under the International Rail Transport Legal System. NDJ [internet]. 2024 Feb. 8 [cited 2026 Sep. 29];60(3-4):46-7. available from: https://so04.tci-thaijo.org/index.php/NDJ/article/view/262748