Kasamesant Sakoolrat และ Jintavee Khlaisang;Jaitip Na-Songkhla. (2020) Virtual Community Learning Center Based on the Philosophy of Sufficiency Economy with Case Based Learning to Enhance Problem Solving Ability of Undergraduate Students. <i>Journal of Education Studies, Chulalongkorn University</i>, <i>48</i>(4), 20-40.Kasamesant Sakoolrat และ Jintavee Khlaisang;Jaitip Na-Songkhla. "Virtual Community Learning Center Based on the Philosophy of Sufficiency Economy with Case Based Learning to Enhance Problem Solving Ability of Undergraduate Students". Journal of Education Studies, Chulalongkorn University 48 (2020):20-40.Kasamesant Sakoolrat และ Jintavee Khlaisang;Jaitip Na-Songkhla. Virtual Community Learning Center Based on the Philosophy of Sufficiency Economy with Case Based Learning to Enhance Problem Solving Ability of Undergraduate Students. Centre for Education Innovation, Print and Online Media:ม.ป.ท. 2020.