%0 Journal Article
%A Nitima Phrommarat
%A Sivaree Sudsanit
%T On a product of universal relational systems
%J Novi Sad Journal of Mathematics
%D 2020
%P 61 - 71
%V 50
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.30755/NSJOM.09812/
%R 10.30755/NSJOM.09812
%F 10.30755/NSJOM.09812