?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=Sam&rft.aulast=Hermansyah&rft.au=Sam+Hermansyah&rft.date=May+2024&rft.btitle=Public+Speaking&rft.isbn=ISBN%3A+978-623-505-073-7+%2F+E-ISBN%3A+978-623-505-074-4&rft.genre=book