Gaya APA
Purwanto, W., Rahardja, P.
(2023).
Super Master OSN Ekonomi SMA
(
Cet. 1)
.
Bandung:
Yrama Widya.
Gaya MLA
Purwanto, Wiji., Rahardja, Pratama.
"Super Master OSN Ekonomi SMA".
Cet. 1
Bandung:
Yrama Widya,
2023.
Text.