Joint Plenum of the C.C. and Control Commission of the CPSU(B) http://www.marx2mao.com/Stalin/JPCC27.html
Preface to the Collected Articles "Against the Stream" https://www.marxists.org/archive/lenin/works/1918/mar/x02.htm
Answer Given by Spokesperson for DPRK Foreign Ministry https://www.kfauk.com/answer-given-by-spokesperson-for-dprk-foreign-ministry/