Ricardo และผู้แต่งคนอื่นๆ. 1995. Awareness of cigarette pack warning labels among ex-smokers and current smokers in Suphan Buri province, Thailand. Faculty of Graduate Studies, Mahidol University;
Ricardo และผู้แต่งคนอื่นๆ. (1995) Awareness of cigarette pack warning labels among ex-smokers and current smokers in Suphan Buri province, Thailand . Mahidol University/Bangkok.
Ricardo และผู้แต่งคนอื่นๆ. Awareness of cigarette pack warning labels among ex-smokers and current smokers in Suphan Buri province, Thailand. . Bangkok:Mahidol University, 1995.
Ricardo และผู้แต่งคนอื่นๆ. (1995) Awareness of cigarette pack warning labels among ex-smokers and current smokers in Suphan Buri province, Thailand . Mahidol University/Bangkok.