Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) NATORI Masahito,Mann-Whitney U Test and Two-sample Tests to compare Measures of Central Tendency in the Case of Unequal Variances,Primate Research,0912-4047,Primate Society of Japan,2014,30,1,173-185,https://cir.nii.ac.jp/crid/1390282680142737920,https://doi.org/10.2354/psj.30.006