Gaya APA
Nawangwulan, R.
().
Read it Yourself Level 1: Tiga Kambing Gunung
.
:
Prestasi Pustakaraya.
Gaya MLA
Nawangwulan, Retno.
"Read it Yourself Level 1: Tiga Kambing Gunung".
:
Prestasi Pustakaraya,
.
Text.