Ekalak Sitthipornvorakul และผู้แต่งคนอื่นๆ. (2014) A STUDY OF ASSOCIATION BETWEEN DAILY PHYSICAL ACTIVITY AND THE ONSET OFNECK AND LOW BACK PAIN IN OFFICE WORKERS AND DEVELOPMENT OF DAILY PHYSICAL ACTIVITY MEASUREMENT TOOL FOR PREVENTING NECK AND LOW BACK PAIN IN OFFICE WORKERS. Chulalongkorn University:ม.ป.ท.Ekalak Sitthipornvorakul และผู้แต่งคนอื่นๆ. 2014. A STUDY OF ASSOCIATION BETWEEN DAILY PHYSICAL ACTIVITY AND THE ONSET OFNECK AND LOW BACK PAIN IN OFFICE WORKERS AND DEVELOPMENT OF DAILY PHYSICAL ACTIVITY MEASUREMENT TOOL FOR PREVENTING NECK AND LOW BACK PAIN IN OFFICE WORKERS. ม.ป.ท.:Chulalongkorn University;Ekalak Sitthipornvorakul และผู้แต่งคนอื่นๆ. A STUDY OF ASSOCIATION BETWEEN DAILY PHYSICAL ACTIVITY AND THE ONSET OFNECK AND LOW BACK PAIN IN OFFICE WORKERS AND DEVELOPMENT OF DAILY PHYSICAL ACTIVITY MEASUREMENT TOOL FOR PREVENTING NECK AND LOW BACK PAIN IN OFFICE WORKERS. ม.ป.ท.:Chulalongkorn University, 2014. Print.