Gaya APA

Widiantari, I, W, D, K, . (2024). OSN MATEMATIKA (1st ed.). Yogyakarta: PIXELINDO.

Gaya MLA

Widiantari, Indah, Werdiningsing, Dan, Kiki, . "OSN MATEMATIKA". 1st ed. Yogyakarta: PIXELINDO, 2024. Text.