1.
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 Pac J Sci Technol [internet]. 2017 Apr. 19 [cited 2026 Apr. 22];13(11):1332-44. available from: https://so01.tci-thaijo.org/index.php/APST/article/view/83492