Chia-Hung Duan@f103119Follow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencef103119 has not updated employment details yet.EducationNTULinksf103119 has not updated links details yet. Skillsf103119 has not updated skills details yet.