Gaya APA
Sukino, . (2011).
Maestro olimpiade matematika SD : mastering your strotegy to be a successful olympion .
Jakarta:
Erlangga.
Gaya MLA
Sukino, .
"Maestro olimpiade matematika SD : mastering your strotegy to be a successful olympion".
Jakarta:
Erlangga,
2011.
BUKU TEKS.