Educational Attainment: 15.1 General Education and 15.3 Continuing Education: In: Recent Social Trends in Bulgaria 1960-1995, Eds. Genov, N. and Anna Krasteva, Canada, Toronto: McGill-Queen’s University Press, Montreal @ Kingston, London: Ithaka, 2001, pp. 426-430, p. 439 ISBN 3-89626-2016-5