Rajagukguk, D. L., A. Salim, K. S. D. Lestari, and D. E. Isa. “Public Communication Proficiency Workshop to Strengthen Students’ Self-Confidence of SMKN 3 Depok”. Indonesian Journal of Community Services Cel, vol. 2, no. 1, June 2023, pp. 27-32, doi:10.70110/ijcsc.v2i1.35.