Kujutav geomeetria. 1
Humal, Arnold
;
Rünk, Ott
;
Garšnek, Aleksander
1946
https://www.ester.ee/record=b1184124*est
Kujutav geomeetria. 1
Humal, Arnold
;
Rünk, Ott
;
Garšnek, Aleksander
1950
https://www.ester.ee/record=b1399264*est
Kujutav geomeetria. 3
Humal, Arnold
;
Rünk, Ott
;
Garšnek, Aleksander
1949
https://www.ester.ee/record=b1454283*est