?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aufirst=Mara&rft.aulast=Ipa&rft.au=Ipa%2C+Mara&rft.tpages=59&rft.btitle=Menghapus+Jejak+Kaki+Gajah&rft.isbn=978-979-21-4820-6&rft.date=2016&rft.genre=book