Singh, S. K. K. and Ross, W. (2010) “Fear or Altruism? Exploring the Environmental Ethic and Loss of Traditional Knowledge of the Forest Dependent Jakun”, Journal of Population and Social Studies [JPSS], 18(2), pp. 39–64. available at: https://so03.tci-thaijo.org/index.php/jpss/article/view/84671 (accessed: 14 October 2026).