NONIS KP, PARKER HE, LARKIN D. The Development of Hopping: An observation Checklist for Educators: 單足跳的進展程度: 教育者的觀察清單. ajper [Internet]. 2004 Jun. 1 [cited 2024 Apr. 20];10(1):8-18. Available from: https://ejournals.lib.hkbu.edu.hk/index.php/ajper/article/view/1291