Engels, Friedrich, 1820-1895
Hasta Mitra, 2002
Buku Teks SO
Artikel Jurnal
Woodfin, Rupert
Rupert Woodfin, 2004
Buku Teks
Lenin, Vladimir I.
Foreign Languages Publishing House , 1950
Buku Teks SO
Lenin, Vladimir I.
Foreign Languages Publishing House , 1950
Buku Teks SO