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Tjawa, Ila (1 December 1906). "Våra rekord". Finskt idrottsblad — officiellt organ för Helsingfors gymnastikklubb (in Swedish). No. 12/1906. Helsinki: Uno Westerholm. p. 153 – via Digital Collections of National Library of Finland.
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"Asemapäällikkö A. J. Pesonen". Laatokka (in Finnish). Sortavala: Sortavalan Kirjapaino Oy. 23 March 1935. p. 3. ISSN1458-2295. Retrieved 28 September 2020 – via Digital Collections of National Library of Finland.
Pihkala, L. (1909). "Urheilukilpailut". Suomen Urheilulehti (in Finnish). No. 13/1909. Helsinki. p. 447. ISSN0355-6085. Retrieved 3 August 2017 – via Digital Collections of National Library of Finland.
"Asemapäällikkö A. J. Pesonen". Laatokka (in Finnish). Sortavala: Sortavalan Kirjapaino Oy. 23 March 1935. p. 3. ISSN1458-2295. Retrieved 28 September 2020 – via Digital Collections of National Library of Finland.