Yoo, C., Park, S., Yang, D., Park, Y., Kim, D., & Yang, Y. (2014). Study of the Physical Condition of Middle-aged Office and Field Workers Aged 50 and Older. The Society of Physical Therapy Science.

Yoo, ChanUk, SooHee Park, DongJoo Yang, YunHee Park, DeokJu Kim, và YeongAe Yang. Study of the Physical Condition of Middle-aged Office and Field Workers Aged 50 and Older. The Society of Physical Therapy Science, 2014.

Yoo, ChanUk, et al. Study of the Physical Condition of Middle-aged Office and Field Workers Aged 50 and Older. The Society of Physical Therapy Science, 2014.