Kamonthat Nualanan และ Rugphong Vongsaroj. (2016) Banner advertising management for local online travel agencies. National Institute of Development Administration:ม.ป.ท.Kamonthat Nualanan และ Rugphong Vongsaroj. 2016. Banner advertising management for local online travel agencies. ม.ป.ท.:National Institute of Development Administration;Kamonthat Nualanan และ Rugphong Vongsaroj. Banner advertising management for local online travel agencies. ม.ป.ท.:National Institute of Development Administration, 2016. Print.