Piyapat Bunnag. 2006. The European development cooperation policy toward Vietnam in the 1990s and the beginning of the 2000s : a case study of constructivist analysis of foreign policy. Faculty of Sozialwissenschaften, Eberhard-Karls-University;
Piyapat Bunnag. (2006) The European development cooperation policy toward Vietnam in the 1990s and the beginning of the 2000s : a case study of constructivist analysis of foreign policy . Eberhard-Karls-University/Tuebingen.
Piyapat Bunnag. The European development cooperation policy toward Vietnam in the 1990s and the beginning of the 2000s : a case study of constructivist analysis of foreign policy. . Tuebingen:Eberhard-Karls-University, 2006.
Piyapat Bunnag. (2006) The European development cooperation policy toward Vietnam in the 1990s and the beginning of the 2000s : a case study of constructivist analysis of foreign policy . Eberhard-Karls-University/Tuebingen.