Pholkhot, S., and M. Wongsaphan. “The Development Curriculum for Sixth Grade Science Teachers in Learning Management Based on Education 4.0”. Dhammathas Academic Journal, vol. 18, no. 3, Dec. 2018, pp. 121-32, https://so06.tci-thaijo.org/index.php/dhammathas/article/view/132956.