(1) According to “Lich Trieu Hien Chuong Loai Chi” (Regulations of Successive Dynasties) by historian Phan Huy Chu.

(2) According to the book “Vua di duong vua ke chuyen” (Stories on the road) by author T. Lan, printed in 1976 by Su That Publishers.

(3) Ho Chi Minh (2000), Complete Works, National Political Publishing House, Hanoi, vol. H, pp. 126-128 (article “The path that led me to Leninism”, published in the journal “Issues in the Orient”, Soviet Union, 1960, on the occasion of the 90th anniversary of V.I. Lenin’s birth).

(4) Ho Chi Minh and his homeland Nghe Tinh (proceedings of the scientific conference commemorating the 100th anniversary of President Ho Chi Minh’s birth) (1990), Nghe Tinh Publishing House, p. 146.

(5) Ho Chi Minh and the land of Quang (2000), National Political Publishing House, Hanoi.

(6) “Little Fire” newspaper, in Russian, 1923 by Osip Mandelstam (quoted in the book “Culture and Art are also a Front”, Literature Publishing House, 1981, p. 477).

(7) Ho Chi Minh and his homeland Nghe Tinh (proceedings of the scientific conference commemorating the 100th anniversary of President Ho Chi Minh’s birth) (1990), Nghe Tinh Publishing House, p. 94.

(8) Impressions of international visitors at the Ho Chi Minh Heritage Site (Presidential Palace), Ba Dinh, Hanoi.