KETSING, J.; ROADRANGKA, V. A study of teaching ecology in lower secondary schools under the project for extension of educational opportunity in Bangkok (Thai). Asia-Pacific Journal of Science and Technology, [S. l.], v. 13, n. 11, p. 1332–1344, 2017. Disponível em: https://so01.tci-thaijo.org/index.php/APST/article/view/83492. Acesso em: 15 sep. 2026.