Jakawan Wongmanee และ Rugphong Vongsaroj. (2021) Attributes of creative tourism value proposition and guideline for the lower North Eastern province group 2. National Institute of Development Administration:ม.ป.ท.Jakawan Wongmanee และ Rugphong Vongsaroj. 2021. Attributes of creative tourism value proposition and guideline for the lower North Eastern province group 2. ม.ป.ท.:National Institute of Development Administration;Jakawan Wongmanee และ Rugphong Vongsaroj. Attributes of creative tourism value proposition and guideline for the lower North Eastern province group 2. ม.ป.ท.:National Institute of Development Administration, 2021. Print.