MAKHMUDOV, Rustam. “ASSESSMENT OF CENTRAL ASIA’S OIL AND GAS RESERVES AND THEIR BUDDING SALES MARKETS (THE EU AND CHINA)”. CENTRAL ASIA AND THE CAUCASUS, vol. 12, no. 3, June 2011, pp. 157-70, https://ca-c.org/index.php/cac/article/view/1839.