1. LT, No. 1, 01 3, 1959, p. 6
2. Jen-min Yu-tien (People's Posts and Telecommunications), No. 15, 05 22, 1959, p. 5
3. Mu-ch'iao Hsüeh , “1953-nien t'ung-chi kung-tso chien-t'ao ho 1954-nien t'ung-chi kung-tso yao-tien”
4. Yin-ch'u Ma , “Wo-ti che-hsüeh ssu-hsiang ho ching-chi li-lun”
5. Problemy vostokovedeniya) (Problems of the Far East), No. 2, 1960, p. 84