R. Mohamad Ali
The Government of the Capital CIty of Djakarta, 1970
Buku Referensi
Finch, B. E.
Charles C. Thomas, 1963
Buku Teks SO
Gardner, Helen
Harcourt, Brace and World, 1959
Buku Teks SO
edited by Edward Conze
Bruno Cassirer, 1954
Buku Teks SO
Scherer, James A.B.
Hokuseido Press, 1933
Buku Teks SO