Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
HLADIK CM,A comparative study of the feeding strategies of two sympatric species of leaf monkeys : Presbytis senex and Presbytis entellus,"Primate Ecology : Studies of Feeding and Ranging Behaviour in Lemurs, Monkeys, and Apes",,Academic Press,1977,,,,https://cir.nii.ac.jp/crid/1573105975353014272,