APA Format

50810. (2013). The secret public speaking : era konseptual. Jakarta : bbc

MLA Format

50810. The secret public speaking : era konseptual. Jakarta : bbc, 2013

Chicago Format

50810. The secret public speaking : era konseptual. Jakarta : bbc, 2013

Australian/Harvard Format

50810. 2013. The secret public speaking : era konseptual. bbc Jakarta