?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.aulast=Hill+Gendoet+Hartono&rft.au=Hill+Gendoet+Hartono%2C+.&rft.aufirst=.&rft.title=THE+GEOLOGIC+IMPORTANCE+OF+WEST+PROGO+MOUNTAIN+IN+THE+REFERENCE+TO+THE+NEWLY+ESTABLISHED+INTERNATIONAL+AIRPORT+IN+WATES%2C+SPECIAL+PROVINCE+OF+YOGYAKARTA%2C+INDONESIA&rft.date=25+November+2019&rft.genre=proceeding