APA-referens (7:e uppl.)

Nour, A. H., Azhari, H. N., & Robina, F. (2017). Production of Biogas and Performance Evaluation of Ultrasonic Membrane Anaerobic System (UMAS) for Palm Oil Mill Effluent Treatment (POME). INTECH.

Chicago-referens (17:e uppl.)

Nour, A. H., H. Nour Azhari, och Faaroq Robina. Production of Biogas and Performance Evaluation of Ultrasonic Membrane Anaerobic System (UMAS) for Palm Oil Mill Effluent Treatment (POME). INTECH, 2017.

MLA-referens (9:e uppl.)

Nour, A. H., et al. Production of Biogas and Performance Evaluation of Ultrasonic Membrane Anaerobic System (UMAS) for Palm Oil Mill Effluent Treatment (POME). INTECH, 2017.

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