Gaya APA
PEN, Ronald. (1992).
Introduction to Music .
New York:
McGraw- Hill.
Gaya Chicago
PEN, Ronald.
Introduction to Music.
New York:
McGraw- Hill,
1992.
BUKU.
Gaya MLA
PEN, Ronald.
Introduction to Music.
New York:
McGraw- Hill,
1992.
BUKU.
Gaya Turabian
PEN, Ronald.
Introduction to Music.
New York:
McGraw- Hill,
1992.
BUKU.