Annual report of research activities in 2000 / Estonian Business School
2001
https://www.ester.ee/record=b1751498*est
Annual report of research activities in 2001 / Estonian Business School
2002
https://www.ester.ee/record=b1751498*est
Matemaatika ülesandeid sisseastujaile
Päeva, Heikki
1995
Matemaatika ülesandeid sisseastujaile
Päeva, Heikki
1996
Matemaatika ülesandeid sisseastujaile
Päeva, Heikki
1997
https://www.ester.ee/record=b1436021*est