Sima Sanrak. 2004. A feasibility study of reforestation project in Clean Development Mechanism under Kyoto Protocol. Field of Study Technology of Environmental Management, Mahidol University;
Sima Sanrak. (2004) A feasibility study of reforestation project in Clean Development Mechanism under Kyoto Protocol . Mahidol University/Bangkok.
Sima Sanrak. A feasibility study of reforestation project in Clean Development Mechanism under Kyoto Protocol. . Bangkok:Mahidol University, 2004.
Sima Sanrak. (2004) A feasibility study of reforestation project in Clean Development Mechanism under Kyoto Protocol . Mahidol University/Bangkok.