Hita H, Br Sembiring S, Djoni D, Hanes H, Culita C. Improving Graphic Design Competence of Vocational Students through Graphic Design Skills of Yapim Biru Biru Private Vocational School Students. J-IbM [Internet]. 2026 Feb. 13 [cited 2026 Feb. 14];5(3):365-74. Available from: https://journal.aira.or.id/j-ibm/article/view/1497