Pagamas Piriyaprasarth. (1999) Comparison of concentric isokinetic of trunk muscles performance between female subjects with and without low back pain. Mahidol University,:ม.ป.ท.Pagamas Piriyaprasarth. 1999. Comparison of concentric isokinetic of trunk muscles performance between female subjects with and without low back pain. ม.ป.ท.:Mahidol University,;Pagamas Piriyaprasarth. Comparison of concentric isokinetic of trunk muscles performance between female subjects with and without low back pain. ม.ป.ท.:Mahidol University, 1999. Print.