Kamri, T. ., Kasuma, J. ., Kutok, J. ., & Darma, D. C. . (2020). Do Tourists Willing to Pay for the Value of Environmental Conservation? A Case of Annah Rais Longhouse and Hot Springs. Journal of Tourism Management Research, 7(2), 218–228. https://doi.org/10.18488/journal.31.2020.72.218.228