Gaya APA
      Syafrizal, . et al (2015).
    Biodegradation enhancement of oily wastewater by ozonation method .
    Jakarta:
  PUSLIT-LEMIGAS.
  
Gaya MLA
      Syafrizal, . et al.
    "Biodegradation enhancement of oily wastewater by ozonation method".
    
    Jakarta:
  PUSLIT-LEMIGAS,
  2015.
  .