Swandana A, Sugiharto S, Ciptaning Wahyu I. Development of Reaction Speed and Endurance Training Tools for Taekwondo Kick Speeds Using Pyongyo. JPES [Internet]. 31Mar.2021 [cited 8May2024];10(1):8-6. Available from: http://journal.unnes.ac.id/sju/jpes/article/view/44385