RAJAGUKGUK, D. L.; SALIM, A.; LESTARI, K. S. D.; ISA, D. E. Public Communication Proficiency Workshop to Strengthen Students’ Self-Confidence of SMKN 3 Depok. Indonesian Journal of Community Services Cel, [S. l.], v. 2, n. 1, p. 27–32, 2023. DOI: 10.70110/ijcsc.v2i1.35. Disponível em: http://ijcomcel.org/index.php/IJCSC/article/view/35. Acesso em: 25 aug. 2025.