Ngā kaupapa kua tūtohitia
- Tourism
- Economic aspects 4 ngā hua
- Environmental aspects 3 ngā hua
- Social aspects 3 ngā hua
- Design and construction 2 ngā hua
- Roads 2 ngā hua
- Bibliography 1 ngā hua
- Congresses 1 ngā hua
- Ecotourism 1 ngā hua
- Environmental conditions 1 ngā hua
- Environmental management 1 ngā hua
- Environmental policy 1 ngā hua
- Government policy 1 ngā hua
- Sustainable development 1 ngā hua