Sarifitri FH Hutagalung, Ferial Hadipoetro Idris, & Luh K Wahyuni. (1). Standard Value of Lower Extremity Muscle Strength of 8 Years Old Children and Its Correlation with Body Weight and Height. Indonesian Journal of Physical Medicine and Rehabilitation, 2(01), 45 - 54. https://doi.org/10.36803/ijpmr.v2i01.226