1. Faculty of Forestry, Universitas Gadjah Mada, Yogyakarta, Indonesia
2. Research Centre for Ecology and Ethnobiology, National Research and Innovation Agency, Yogyakarta, Republic of Indonesia
3. Research Centre for Plant Conservation, Botanical Garden and Forestry National Research and Innovation Agency, Yogyakarta, Republic of Indonesia
4. Research and Development of PT Arara Abadi Riau, Riau, Indonesia