Billy Gunawan@billygun27Follow BadgesProblem Solving CertificationsCertificate: Problem Solving (Basic)VerifiedskillCertificate: Problem Solving (Intermediate)VerifiedskillCertificate: Problem Solving (Advanced)VerifiedskillWork Experiencebillygun27 has not updated employment details yet.EducationInstitut Teknologi Sepuluh NopemberLinksbillygun27 has not updated links details yet. Skillsbillygun27 has not updated skills details yet.