Annisya, Annisya, Retno Sayekti, and Abdi Mubarak Syam. 2023. “PERSEPSI PUSTAKAWAN UNIVERSITAS SUMATERA UTARA TERHADAP PROGRAM SERTIFIKASI UJI KOMPETENSI”. Triwikrama: Jurnal Ilmu Sosial 2 (2):83-93. https://doi.org/10.6578/triwikrama.v2i2.869.