Jan Laarman Aruna, P. B., Laarman, J. G., Araman, P., & Cubbage, F. W. (1997). An analysis of wood pellets for export: A case study of Sweden as an importer. Forest Products Journal, 47(6), 49–52. Aruna, P. B., Laarman, J. G., Araman, P., Coulter, E., & Cubbage, F. W. (1997). Used pallets as a source of pellet fuel: current industry status. Forest Products Journal, 47(9), 51–56. Laarman, J. G., & Gregersen, H. M. (1996). Pricing policy in nature-based tourism. TOURISM MANAGEMENT, 17(4), 247–254. https://doi.org/10.1016/0261-5177(96)00016-7 LAARMAN, J. G., STEWART, E. J., & DUGAN, P. C. (1995). THE ECONOMICS OF EXTRACTION IN PHILIPPINE FORESTS - WHEN TIMBER TURNS TO GOLD. MOUNTAIN RESEARCH AND DEVELOPMENT, 15(2), 153–164. https://doi.org/10.2307/3673878 Laarman, J., & Gregersen, H. (1994). Making nature-based tourism contribute to sustainable development: A policy framework. In Making nature-based tourism contribute to sustainable development: a policy framework (p. 6). Madison, WI : EPAT/MUCIA Research & Training, University of Wisconsin-Madison. Laarman, J. G. (1993). Evaluating environmental impacts of rural development projects. In Evaluating environmental impacts of rural development projects (p. 14). Madison, Wis. : Environmental and Natural Resources Policy and Training Project. Laarman, J. G., & Prestemon, J. P. (1989). Employment and resource efficiency in forest products industries of Ecuador. Working Paper (Forestry Private Enterprise Initiative), (40), 13. Laarman, J. G., Stewart, T. P., & Prestemon, J. P. (1989). International travel by US conservation groups and professional societies. Journal of Travel Research, 28(1), 12. https://doi.org/10.1177/004728758902800103 LAARMAN, J. G., & PERDUE, R. R. (1989). SCIENCE TOURISM IN COSTA-RICA. ANNALS OF TOURISM RESEARCH, 16(2), 205–215. https://doi.org/10.1016/0160-7383(89)90068-6 Laarman, J. G., & Perdue, R. R. (1989). Tropical science and tourism. The case of OTS in Costa Rica. Tourism Management, 10(1), 29. https://doi.org/10.1016/0261-5177(89)90032-0 Laarman, J. G., Schreuder, G. F., & Anderson, E. T. (1988). An overview of forest products trade in Latin America and the Caribbean Basin. Forest Products Trade: Market Trends and Technical Developments, 3. Laarman, J. G., Stewart, T. P., & Prestemon, J. P. (1988). International travel by US conservation groups and professional societies. Working Paper (Forestry Private Enterprise Initiative), (37), 18. Laarman, J. G., & Perdue, R. R. (1988). Tropical tourism as economic activity: OTS in Costa Rica. Working Paper (Forestry Private Enterprise Initiative), (33), 25. Laarman, J. G., & Perdue, R. R. (1987). A survey of return visits to Costa Rica by OTS participants and associates. Working Paper (Forestry Private Enterprise Initiative), (29), 32.