Search results for: Somsak Lekkoksung
Discussiones Mathematicae - General Algebra and Applications > 2016 > 36 > 1 > 25-43
Discussiones Mathematicae - General Algebra and Applications > 2009 > 29 > 1 > 47-74
Discussiones Mathematicae - General Algebra and Applications > 2016 > 36 > 1 > 25-43
Discussiones Mathematicae - General Algebra and Applications > 2009 > 29 > 1 > 47-74