Somroop, A., Thummarattanakul, K., Lammana, N., & Tassanavipas, K. (2025). Portable Labor and Delivery Training Box Innovation: Instructional Media. Nursing Journal CMU, 52(3), 285–296. retrieved from https://he02.tci-thaijo.org/index.php/cmunursing/article/view/273043