Gaya APA
Billboard Magazine - January 20, 2018. (2018).
:
.
Gaya Chicago
Billboard Magazine - January 20, 2018.
.
:
,
2018.
e-book.
Gaya MLA
Billboard Magazine - January 20, 2018.
.
:
,
2018.
e-book.
Gaya Turabian
Billboard Magazine - January 20, 2018.
:
,
2018.
e-book.