List of Articles Natural Gas Demand Open Access Article Abstract Page Full-Text 1 - Estimation of Natural Gas Demand Function in Residential and Commercial Sectors in Iran: a Nonlinear Approach علیرضا حاج ملاعلی کنی مجید عباسپور زهرا عابدی Open Access Article Abstract Page Full-Text 2 - The Analysis of factor affecting the household and commercial demand for gas (A case study of Gilan Province) Abbas Ali Abounoori Teymoor Mohammadi Hadi Parhizi Gashti