Δημοσιεύτηκε στις 26 Δεκεμβρίου, 2023
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https://www.slideshare.net/stathis13061965
https://lefkas-gourzis-stathis.blogspot.com/
https://www.scribd.com/user/21799490/Stathis-Gourzis
https://www.youtube.com/user/1000Stathis
https://www.youtube.com/user/1000Stathis
https://issuu.com/stathis_lefkas