Socialism in Power: On the History and Theory of Socialist Governance:
Page# 178 - Soviet Union "The subsequent articles in this chapter spell out what each of these terms meant in practice, including the process of nominating candidates, who would come from “public organisations and societies of the working people: Communist Party organisations, trade unions, cooperatives, youth organisations and cultural societies” (Supreme Soviet 1936a, article 141, 1936b, stat’ia 141)."
Page# 181 - Soviet Union "The drive for electoral democracy did not long live up to its lofty aims, with the most embarrassing retreat being from multi-candidate contested elections to single-candidate elections. At the same time, there was an even greater effort to ensure democratic accountability through elections internal to the Party."
page# 208 - DPRK "there are also distinct emphases in light of the DPRK’s concrete conditions. In terms of electoral democracy: while there is only one decision-making body, the Supreme People’s Assembly (along with regional people’s assemblies), there is also the Democratic Front for the Reunification of the Fatherland. This is not a governing body per se, but it plays a crucial role in the electoral process. Made up of all political parties, mass organisations, and religious groups, it proposes multiple candidates, debates their suitability, and approves one candidate for elections."
Page# 379 - China "Election to the position of Party branch secretary takes place at a plenary or general members meeting, although the election also needs to be approved by the regional Party committee"