Gaya APA

Sustainable development: A challenge for Indonesia at Rio+20 Conference 2012 and Beyond. (2012). Jakarta: Pusat pendidikan dan pelatihan kementrian luar.

Gaya MLA

Sustainable development: A challenge for Indonesia at Rio+20 Conference 2012 and Beyond. . Jakarta: Pusat pendidikan dan pelatihan kementrian luar, 2012. Artikel.