Nurdianto, Dian, Syarwani Ahmad, and Mulyadi. 2021. “To Evaluate The Performance Of Certification Competence Vocational Students Through Certification Institute Profesi-P1 Program Computer Engineering Expertise And Tissues At South Sumatra”. Jurnal Pendidikan Tambusai 5 (1):2370-73. https://doi.org/10.31004/jptam.v5i1.1687.