1. Graduate School of International Agricultural Technology, Institutes of Green Bio Science and Technology, Seoul National University, Pyeongchang, Gangwon, Republic of Korea
2. Department of Agricultural Economics and Rural Development, Seoul National University, Seoul, Republic of Korea
3. Department of Forest Sciences, Seoul National University, Seoul, Republic of Korea
4. Department of Forest Resources, Souphanouvong University, Luang Prabang, Lao PDR