Gaya APA
Surya, T, P, ., Y.
(2016).
Olimpiade Mat: Kombinatorik
(
cet.2)
.
Jakarta:
PT. Kandel.
Gaya MLA
Surya, Tim, Prof, ., Yohanes.
"Olimpiade Mat: Kombinatorik".
cet.2
Jakarta:
PT. Kandel,
2016.
Text.