?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aulast=Yusup&rft.au=Yusup%2C+S.&rft.aufirst=S.&rft.title=Polyol-ester+synthesis+via+transesterification+of+jatropha-based+methyl+ester+with+trimethylolpropane&rft.date=2013&rft.isbn=9781634390408&rft.genre=proceeding