Pudjeeb P, Ketsiri I, Prabsakul S, Tubmarerng C. Effects of Using Instructional Package in Career Subject for Mathayomsuksa 3rd. ambj [internet]. 2023 Aug. 28 [cited 2026 Oct. 2];8(2):105-17. available from: https://so06.tci-thaijo.org/index.php/ambj/article/view/264732