Hertz, W A, Report on the ferries on the Mali Hka between Nonghkai village in the Putao District and the Mali Hka-N'Mai Hka confluence in the Myitkyina District. Rangoon, 1916
Samuelson, B M, Note on Mr Gordon's gauging of the discharge of the Irrawaddy River in 1872/73 and 1875 and also on the effects of double embanking the river from Saiktha to Yandoon. Rangoon, 1914