Anggarani, Ni Kadek, 		Djoko H.S., D.J., AND 		Juswono, Unggul P..
" Identification of Free Radical in Main Stream Cigarette Smoke in Cigarette with Clove mix (Kretek) and Cigarette without Clove mix (White)" <em>BULETIN FISIKA</em> [Online], Volume 21 Number 2 (16 July 2020)