[1]
Phantip Vattanaviboon, Kulnaree Sirisali, Sudarat Manochiopinij, Wijit Wonglumsom, Pairoj Leelahakul, and Sophon Sirisali, “Continuous Personal Competency Improvement by Remote Education”, Agr. Nat. Resour., vol. 40, no. 5, pp. 9–12, Oct. 2006.