Cole, George Douglas Howard
Socialist economics
Gollancz, 1950
 Buku Teks SO
Jay, Douglas
The socialist case
Faber & Faber, 1946
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Gray, Alexander
The socialist tradition : Moses to Lenin
Longmans, Green, 1948
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Lenin, Vladimir I.
On Soviet socialist democracy
Foreign Languanges Publishing House, [1967]
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Amritananda, Bhikkhu
Buddhist activities in socialist countries
New World Press, 1961
 Buku Teks SO