1. Oil, Natural Gas and NGL Endowment in North, Central and South America;Aguilera,2009
2. ASTM 1945:1996.
3. Attaway, D.A., Huang, S., Kotzot, H., Durr, C.A., Optimal process location for NGL recovery in LNG plant. In: AIChE Spring National Meeting, Conference Proceedings, 2005 1927–1942.
4. Baldonedo, A.H.H., Maximizing NGL recovery by refrigeration optimization. In: GPA Annual Convention Proceedings 1999; 201–211.
5. Cuellar, K.T., Wilkinson, J.D., Hudson, H.M., Pierce, M.C., Co-producing LNG from cryogenic NGL recovery plants. In: GPA Annual Convention Proceedings 2002.