Gaya APA
Erna, F., Sumiratingratri, R.
(2020).
English is Cool
.
Jakarta:
PT. Gading Inti Prima.
Gaya MLA
Erna, Fitrini., Sumiratingratri, Ratih.
"English is Cool".
Jakarta:
PT. Gading Inti Prima,
2020.
Text.