Onida, Mawarta, and Faisal SR. “UJI KEMAMPUAN PUBLIC SPEAKING MAHASISWA PRODI MICE POLITEKNIK NEGERI JAKARTA”. EPIGRAM (e-journal) 9, no. 1 (March 12, 2013). Accessed July 3, 2024. https://jurnal.pnj.ac.id/epigram/article/view/40.