Ram Ngarmvitroje และผู้แต่งคนอื่นๆ. (2022) Level of motivation for smoking cessation in hospitalized active smokers at Department of Internal Medicine, King ChulalongkornMemorial Hospital. <i>Journal of Medical Bioscience</i>, <i>4</i>(2), 73-80.Ram Ngarmvitroje และผู้แต่งคนอื่นๆ. "Level of motivation for smoking cessation in hospitalized active smokers at Department of Internal Medicine, King ChulalongkornMemorial Hospital". Journal of Medical Bioscience 4 (2022):73-80.Ram Ngarmvitroje และผู้แต่งคนอื่นๆ. Level of motivation for smoking cessation in hospitalized active smokers at Department of Internal Medicine, King ChulalongkornMemorial Hospital. Faculty of Medicine Chulalongkorn University:ม.ป.ท. 2022.