5Kraft. Arthur, Kraft. John. On the relationship between energy and GNP. Journal of Energy & Development, 1978, (4): 401 -403.
6Masih, Abul M. M., Masih , Rumi. On the temporal causal relationsh!p between energy consumption, real income and prices: some new evidence from Asian-energy dependent NICs based on a multivariate co-integration vector error-correetion approach. Journal of Policy Modeling, 1997, (8): 417-440.
7Dickey D. A., Fuller W. A. Likelihood ratio statistics for auto regression time series with a unit root. Econometrical, 1981, (49) : 427 - 431.
8Bernard Gilland.Population,Economic Growth,and Energy Demand,1985-2020. Population and Development Review . 1988
9Dale WJorgenson.The Role of Energyin Productivity Growth. The American Economic Review . 1984
10Kent THealy.Energy:Transportation as a Factor in Economic Growth. The Journal of Economic History . 1947