Thepparat, T. (2023) “Development of Science Learning Packages for Developing Life Skill Course in Vocational Certification”, Journal of Advanced Development in Engineering and Science. Babgkok, Thailand, 6(15), pp. 25–36. available at: https://ph03.tci-thaijo.org/index.php/pitjournal/article/view/849 (accessed: 26 August 2026).