Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) MATSUNAGA Yasuhiro and ADACHI Miyu,Motion Analysis of a Rocking Wooden Toy with a Glass Ball Going Down a Slope,Journal of the Japan Society of Technology Education,2434-6101,The Japan Society of Technology Education,2021-03-28,63,1,13-21,https://cir.nii.ac.jp/crid/1390010292792157184,https://doi.org/10.32309/jjste.63.1_13