@article{adinugraha_sulaksana_hendarmawan_santoso_umar_amalia_2018, 
  title={Washing test of Kendilo coal using  a sink-float method to improve its quality}, 
  volume={21}, 
  DOI={10.30556/imj.vol21.no1.2018.408}, 
  publisher={Puslitbang tekMIRA}, 
  author={Adinugraha and Sulaksana and Hendarmawan and Santoso and Umar and Amalia}, 
  year={2018}, 
  month={Apr}
  }