APA (7th ed.) Citation

Widiarto, T., & Hardoyo, R. (2016). Kumpulan latihan soal pembahasan olimpiade. Olimpiade Sains Indonesia.

Chicago Style (17th ed.) Citation

Widiarto, Tri, and Rachmat Hardoyo. Kumpulan Latihan Soal Pembahasan Olimpiade. Olimpiade Sains Indonesia, 2016.

MLA (8th ed.) Citation

Widiarto, Tri, and Rachmat Hardoyo. Kumpulan Latihan Soal Pembahasan Olimpiade. Olimpiade Sains Indonesia, 2016.

Warning: These citations may not always be 100% accurate.