DescriptionCommunist youth organization in Semarang 1922 from Blumberger 1935.png
English: A group photo of youth affiliated with the Communist Party of Indonesia (PKI) in Semarang, probably at the school operated by the PKI. 1922. From Petrus Blumberger, J.Th."De communistische beweging in Nederlandsch-Indië". H.D. Tjeenk Willink,1935.
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