| Tourism's income distribution in West Papua Province O Tiku, T Shimizu, D Hartono Annals of Tourism Research Empirical Insights 3 (1), 100038, 2022 | 16 | 2022 |
| Tourism, accommodation, and the regional economy in Indonesia's West Papua O Tiku, T Shimizu Island Studies Journal 15 (2), 315-333, 2020 | 6 | 2020 |
| Empowering voluntary approaches for environmental sustainability and resilient communities: a case study from Okinawa, Japan T Tanaka, O Tiku, N Takashina Discover Sustainability 3 (1), 27, 2022 | 4 | 2022 |
| Evaluation of environmental energy efficiency and its influencing factors: a prefecture-level analysis of Japanese manufacturing industries M Shimizu, O Tiku Journal of Economic Structures 12 (1), 3, 2023 | 2 | 2023 |
| Tourism-led economic contribution, interregional repercussion effects, and intersectoral propagation activities in Tokyo Metropolitan O Tiku, T Shimizu Journal of Economic Structures 11 (1), 18, 2022 | 1 | 2022 |
| Measuring Environmental Efficiency in Japanese Prefectures: A Case of Discharging of Industrial Waste 清水政行 International journal of Okinawan studies 9, 1-18, 2018 | | 2018 |
