1. State Forest Officer to Director of Forests, 8.7.1931, DF/500/31; A.D.O. Gopeng to D.O. Kinta, Perak FO/171/22.
2. Williams-Hunt to Deputy Chief Secretary, 13.10.1950, FS/12354/50.
3. Headmanship and leadership in Temiar society;Benjamin;Federation Museums Journal,1969
4. Protector of Aborigines to Kajang D. O. , 5.4.1946, RC.SEL/677/46.
5. ‘Comments by the Acting Director of Forestry of paper ref. G/54/3B by the Department of Aborigines on the conflict of interests between the two Departments’, 7.7.1956, DF/787/54.