Wouden, F.A.E. van
Martinus Nijhoff, 1968
Buku Teks SO
Zaynur Ridwan
Salsabila, 2011
Buku Teks SO
Bisson, T.A.
Macmillan, 1945
Buku Teks SO
Hubbard, G.E.
International Secretariat Institute of Pasific Relations, 1943
Buku Teks
Bisson, T.A.
International Secretariat Institute of Pasific Realtions , 1945
Buku Teks