de Silva, Padmsiri. “The Many Faceted Nature of a Crisis: Ecological, Economic, Marketing, Cultural and Basic Human Values”. International Journal of Multidisciplinary in Management and Tourism 2, no. 1 (October 7, 2020): 1–6. accessed August 27, 2026. https://so03.tci-thaijo.org/index.php/ijmmt/article/view/247841.