"The Unclean Days"-The Christmastide in Bulgarian Folk Belief. Bulletin of the Department of Foreign Languages and Studies. Soka University. 2004. 14. 1-25
Childbirth Ritual and Custom of Russian Peants. Bulletin of the Department of Foreign Languages and Studies, Soka University. 2003. 13. 23-45
ロシア産育習俗考. 創価大学外国語学科紀要. 2003. 13. 23-45
Childbirth Ritual and Custom of Russian Peants. Bulletin of the Department of Foreign Languages and Studies, Soka University. 2003. 13. 23-45