Engels, Friedrich, 1820-1895, author
Hasta Mitra, 2002
Buku Teks
Lenin, Vladimir I., author
Foreign Languages Publishing House , 1950
Buku Teks
Artikel Jurnal
Woodfin, Rupert, author
Rupert Woodfin, 2004
Buku Teks
Smita Annisaghara, author
2018
UI - Makalah dan Kertas Kerja