AlHijjah 26, 1433, Nov 11, 2012, SPA - Slovenia is holding a presidential election on Sunday with voters to decide among three candidates running in the race. The post of the head of the country, with a population of two million people, is contested by incumbent President Danilo Turk, former center-left Prime Minister Borut Pahor and center-right ruling coalition candidate Milan Zver, RIA Novosti reported.