Since your request is in Vietnamese, I have prepared an overview for both interpretations so you can choose the one that fits your needs. 1. Trigon : The Demon Conqueror (DC Comics)
Toán Học Lớp 9: Hướng Dẫn Giải Toán | PDF - Scribd Chủ Д‘б»Ѓ Trigon
He is most famously known as the father of Raven , a member of the Teen Titans. Since your request is in Vietnamese, I have