1. Faculty of Forest Industry, University of Forestry, 1797 Sofia, Bulgaria
2. Department of Wood Industry, Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), Cawangan Pahang Kampus Jengka, Bandar Tun Razak 26400, Pahang, Malaysia
3. Research Center for Biomass and Bioproducts, National Research and Innovation Agency, Cibinong 16911, Indonesia
4. Research Collaboration Center for Biomass and Biorefinery between BRIN and Universitas Padjajaran, National Research and Innovation Agency, Cibinong 16911, Indonesia
5. Faculty of Wood Sciences and Technology, Technical University in Zvolen, 96001 Zvolen, Slovakia