%0 Journal Article %T Validation of a field-friendly extraction and storage method to monitor fecal steroid metabolites in wild orangutans %A Nugraha, Taufiq %A Heistermann, Michael %A Agil, Muhammad %A Purwantara, Bambang %A Supriatna, Iman %A Gholib, Gholib %A Schaik, Carel %A Weingrill, Tony %J Primates %V 58 %N 2 %P 285-294 %@ 0032-8332 %D 2016-10-22 %I Springer Japan %~ DeepDyve