Physiological Response to Speed Endurance Soccer Training in Amateur Players oleh I Dewa Made Aryananda Wijaya Kusuma, Nining Widyah Kusnanik, Bayu Agung Pramono, Adi Pranoto, Yanyong Phanpheng, Resti Nurpratiwi, Mokhamad Nur Bawono, Faridha Nurhayati