Marbun, B.T.H., Sinaga, S.Z., Gaol, C.L., Arimbawa, G.V.I., Pamungkas, A.P., Hardama, A.F. and Rizkiaputra, R. 2015. Integrated Analysis of Optimizing Tubing Material Selection for Gas Wells. Journal of Engineering and Technological Sciences. 47, 3 (Aug. 2015), 335-351. DOI:https://doi.org/10.5614/j.eng.technol.sci.2015.47.3.8.