1. T. L. Bergman and F. P. Incropera, Fundamentals of Heat and Mass Transfer (7th ed), (Wiley, Hoboken, New Jersey, 2011), pp. 673–675.
2. G. F. Hewitt, G. L. Shires, and T. R. Bott, Process Heat Transfer (begell house. inc, New York, 2000), pp. 725ndash;727.
3. A. Najafabadi, “Geothermal Power Plant Condensers in the World,” in Proceeding World Geothermal Congress 2015, (Melbourne, Australia, 2015).
4. The influence of non-condensable gases on the net work produced by the geothermal steam power plants
5. V. Apriyanti, A. D Pasek, A. Abdurrachim, W. Adriansyah, and R. Abdurrahman, “Perancangan Perangkat Eksperimen Kondensasi Kontak Langsung dengan Keberadaan Non Condensable Gas,” in Seminar Nasional Tahunan Teknik Mesin XIV (SNTTM XIV), (Banjarmasin, Indonesia, 2015).