Chaisri Khureerung, A. 2019. Examining Thai biology teachers’ understanding of the nature of science: Where there are various ethnic groups of the Mekhong sub-region people. New Trends and Issues Proceedings on Humanities and Social Sciences. 6, 1 (May 2019), 396–404. DOI:https://doi.org/10.18844/prosoc.v6i1.4192.