Gaya APA

Ong, H. et al (2019). Sasmo: Singapore and Asian Schools Math Olympiad Secondary 2 (Grade 8) Math Competitions . Singapore: International Scholastic Trust.

Gaya MLA

Ong, Henry. et al. "Sasmo: Singapore and Asian Schools Math Olympiad Secondary 2 (Grade 8) Math Competitions". Singapore: International Scholastic Trust, 2019. Karya Cetak.