Phuanjai Boonjun. 1990. The effect of brief maximal isometric exercise on strength and endurance of quadriceps femoris. Bangkok:Mahidol University;
Phuanjai Boonjun. (1990) The effect of brief maximal isometric exercise on strength and endurance of quadriceps femoris (รายงานผลงานวิจัย). Mahidol University:Bangkok.
Phuanjai Boonjun. The effect of brief maximal isometric exercise on strength and endurance of quadriceps femoris. Bangkok:Mahidol University, 1990.
Phuanjai Boonjun. (1990) The effect of brief maximal isometric exercise on strength and endurance of quadriceps femoris (รายงานผลงานวิจัย). Mahidol University:Bangkok.