APA (7th ed.) Citation

Riwandi Sihombing, d. (2009). Cara Mudah Menaklukkan Olimpiade kimia SMA Nasional. WAHYU MEDIA.

Chicago Style (17th ed.) Citation

Riwandi Sihombing, dkk. Cara Mudah Menaklukkan Olimpiade Kimia SMA Nasional. WAHYU MEDIA, 2009.

MLA (8th ed.) Citation

Riwandi Sihombing, dkk. Cara Mudah Menaklukkan Olimpiade Kimia SMA Nasional. WAHYU MEDIA, 2009.

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