“LIFE EXPECTANCY, DIRECT FOREIGN INVESTMENTS, TRADE OPENNESS AND ECONOMIC GROWTH IN E7 COUNTRIES: HETEROGENEOUS PANEL ANALYSIS”, Üçüncü Sektör Sosyal Ekonomi Dergisi, vol. 54, no. 2, pp. 731–743, Jun. 2019, doi: 10.15659/3.sektor-sosyal-ekonomi.19.05.1130.