PATRAMURTI, CHRISTINE, AND FENTY, FENTY. " Genotyping Study of Cytochrome P450 2A6 Alel CYP2A6*1 and CYP2A6*9 among Javanese Indonesian Smokers" JURNAL ILMU KEFARMASIAN INDONESIA [Online], Volume 15 Number 1 (30 April 2017)