D. L. Rajagukguk, A. Salim, K. S. D. Lestari, and D. E. Isa, “Public Communication Proficiency Workshop to Strengthen Students’ Self-Confidence of SMKN 3 Depok”, Indones. J. Community Serv. Cel, vol. 2, no. 1, pp. 27–32, Jun. 2023.