Gaya APA
Presentations. (2014).
America:
Harard Bsiness Revew Press.
Gaya Chicago
Presentations.
.
America:
Harard Bsiness Revew Press,
2014.
Buku Tex.
Gaya MLA
Presentations.
.
America:
Harard Bsiness Revew Press,
2014.
Buku Tex.
Gaya Turabian
Presentations.
America:
Harard Bsiness Revew Press,
2014.
Buku Tex.