Nurdianto, D. ., Ahmad, S., & 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), 2370–2373. https://doi.org/10.31004/jptam.v5i1.1687