| English | eng-000 |
| Revolutionary Proletarian Nucleus | |
| English | eng-000 | NIPR |
| English | eng-000 | Revolutionary Proletarian Initiative Nuclei |
| suomi | fin-000 | NIPR |
| suomi | fin-000 | Revolutionary Proletarian Initiative Nuclei |
| suomi | fin-000 | Revolutionary Proletarian Nucleus |