N. N. Abdullah, M. S. Sugandi, Annisa Tribudiati Danaatmaja, Nabillah Indah Lestari, and Ival Fauzi Rahman, “Peningkatan Keterampilan Public Speaking bagi Siswa SMKN 5 Bandung melalui Seminar‘Speak to Lead:Transforming Ideas into Influence’ ”, cosecant, vol. 5, no. 2, Mar. 2026.