| General info : | | Arvo Rask is a Finnish antiquarian, who's involved in running the company Kustannus Oy Kersa and was one of the publishers and editors of the comics magazine Tapiiri. | |
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| Source : | | Tapiiri @ Wikipedia (fi.wikipedia.org/wiki/Tapiiri_(lehti)) | |
| Source : | | (vainu.io/company/kustannus-oy-kersa-taloustiedot-ja-liikevaihto/70090/yritystiedot) | |
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| Copied Wikipedia parts under license : | | Creative Commons Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0) | |