Chunjia Ouyang and Qihang Zhang yettwasken-d ɣef usmel Best Designs of the World s wayen i d-yewwi: 1 n ufeṣṣel i yewwin arraz, deg taɣulin: Afeṣṣel n Tetiknulujiyin Tizirawin, Isnasen d Useɣẓan.
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