Sil, P. “AGE-ASSOCIATED CHANGES OF HAND GRIP STRENGTH AND ABDOMINAL STRENGTH ENDURANCE IN 10 TO 14 YEARS OLD RURAL BOYS”. International Journal of Behavioral Social and Movement Sciences, vol. 2, no. 3, Sept. 2013, pp. 37-43, https://ijobsms.org/index.php/ijobsms/article/view/158.