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Jismoniy tarbiya (1–11) — metodik birlashma uchun. Photo: NYC Stickball, Jun 2014 - 09 — Ed Yourdon (BY-NC-SA)
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Jismoniy tarbiya (1–11) — metodik birlashma uchun. Photo: NYC Stickball, Jun 2014 - 09 — Ed Yourdon (BY-NC-SA)
