Gaya APA
11, S, K, P.
(2003).
Happy mother's Day Disc 1
.
SURABAYA:
SD Kristen Petra 11.
Gaya MLA
11, SD, Kristen, Petra.
"Happy mother's Day Disc 1".
SURABAYA:
SD Kristen Petra 11,
2003.
CD-ROM.