Duangporn Benjanarasut. (1997) Physical activity and development of skeletal mass in Thai children. Mahidol University,:ม.ป.ท.Duangporn Benjanarasut. 1997. Physical activity and development of skeletal mass in Thai children. ม.ป.ท.:Mahidol University,;Duangporn Benjanarasut. Physical activity and development of skeletal mass in Thai children. ม.ป.ท.:Mahidol University, 1997. Print.