1. School of Ecosystem and Forest Sciences, Faculty of Science, The University of Melbourne, Burnley Campus, 500 Yarra Boulevard, Richmond Victoria, Australia;
2. Department of Forest Economics and Wood Technology, Faculty of Forest Science, The National University of Laos, DongDok Campus, Xaythany District, Vientiane, Lao P.D.R;
3. Faculty of Veterinary and Agricultural Sciences, Dookie Campus, The University of Melbourne, Nalinga Rd. Dookie, Victoria, Australia