Gustafsson, Göran , 1987, `Religious Change in the Five Scandinavian Countries, 1930-1980', Comparative Social Research Vol. 10: 145-181.
2.
Heino, Harry , Juha Kauppinen and Risto Ahonen, 1989, The Evangelical-Lutheran Church in Finland 1984-1987, Research Institute of the Lutheran Church in Finland, Tampere.
3.
Holm, Nils G. , 1986, `Recent Research into Revivalist Movements in Finland', Scandinavian Journal of History Vol. 11, No. 4.
4.
Holm, Nils G. , 1988, `Religion in the Nordic Countries', Social Compass, XXXV(1): 317-333.
5.
Lotti, Leila , 1983, Some Aspects of the Religiosity of the Finns 1951 and 1982, Finnish Gallup, Helsinki.
6.
Martin, David , 1978, A General Theory of Secularization, Harper and Row, New York.
7.
Sundback, Susan , 1984, “Folk Church Religion - A Kind of Civil Religion?”, The Church and Civil Religion in the Nordic Countries of Europe, Béla Harmati (ed.), Lutheran World Federation, Geneva.