Anuwichanont, Jirawat, Panisa Mechinda, Sirivan Serirat, Aurathai Lertwannawit, and Nongluck Popaijit. 2011. “Environmental Sustainability In The Thai Hotel Industry”. International Business & Economics Research Journal (IBER) 10 (11):91-100. https://doi.org/10.19030/iber.v10i11.6409.