Native American Heritage Month

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Are you Mariusz Sieraczkiewicz, author of the books below?
Technical Leadership. Od eksperta do lidera by Mariusz Sieraczkiewicz Jak całkowicie odmienić sposób programowania używając Refakto... by Mariusz Sieraczkiewicz Technical leadership by Mariusz Sieraczkiewicz Eseje o efektywności programistów by Michał Bartyzel


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