
Teacher Vang Hoang Sa
At the end of each lecture, Professor Vang would ask the following questions: What was the process of establishing and exercising Vietnam's sovereignty over the Hoang Sa and Truong Sa archipelagos?

At the end of each lecture, Professor Vang would ask the following questions: What was the process of establishing and exercising Vietnam's sovereignty over the Hoang Sa and Truong Sa archipelagos?