Somruthai Poomsalood และ Pasakorn Watanatada. (2009) Effects of tennis shoe tread patterns on plantar pressures during groundstroke shots. Chulalongkorn University:ม.ป.ท.Somruthai Poomsalood และ Pasakorn Watanatada. 2009. Effects of tennis shoe tread patterns on plantar pressures during groundstroke shots. ม.ป.ท.:Chulalongkorn University;Somruthai Poomsalood และ Pasakorn Watanatada. Effects of tennis shoe tread patterns on plantar pressures during groundstroke shots. ม.ป.ท.:Chulalongkorn University, 2009. Print.