Noppadol Prammanee. (2560) An Interaction Model for e-Learning Environments Based on Competency Model and Andragogical Principle. <i>วารสารเทคโนโลยีภาคใต้</i>, <i>10</i>(2), 199-214.Noppadol Prammanee. "An Interaction Model for e-Learning Environments Based on Competency Model and Andragogical Principle". วารสารเทคโนโลยีภาคใต้ 10 (2560):199-214.Noppadol Prammanee. An Interaction Model for e-Learning Environments Based on Competency Model and Andragogical Principle. วิทยาลัยเทคโนโลยีภาคใต้:ม.ป.ท. 2560.