↑(en) Tín Bùi, Following Ho Chi Minh : The Memoirs of a North Vietnamese Colonel, , p. 36
« Others have been branded as spies in the pay of colonialist or imperialist secret services, like Nguyen Huu Dang who was sentenced to fifteen years' imprisonment in 1960 for talking to a Frenchman who remained in Hanoi with the Party's »
↑(en) John Stanley Gillespie, Pip Nicholson et Penelope Nicholson, Asian Socialism & Legal Change : The Dynamics of Vietnamese and ..., , p. 185
« Boudarel notes that five main players (Nguyen Huu Dang, Luu Thi Yen, Tran Thien Bao, Phan Tai and Le Nguyen Chi) were tried and that all received periods of imprisonment followed by a period of national indignity when they were not [...]. »