Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) DAVIES AG,Food selection by two south-east Asian colobine monkeys (Presbytis rubicunda and Presbytis melalophos) in relation to plant chemistry,Biol J Linn Soc,,,1988,34,,33-56,https://cir.nii.ac.jp/crid/1574231875631787904,