Sriphanomwan, Umaphon
Tariboon, Jessada http://orcid.org/0000-0001-8185-3539
Patanarapeelert, Nichaphat
Ntouyas, Sotiris K
Sitthiwirattham, Thanin
Funding for this research was provided by:
Centre of Excellence in Mathematics, the Commission on Higher Education, Thailand