Moonsri, Piyarut, Prisana Yakaw, and Artit Hutem. “CREATION MODEL OF TIME-DEPENDENT LOWERING OPERATOR AND RAISING OPERATOR UNDER TIME-DEPENDENT EXTERNAL DAMPING FORCE SIMPLE HARMONIC OSCILLATOR :”. PSRU Journal of Science and Technology 5, no. 3 (November 30, 2020): 51–59. Accessed April 20, 2024. https://ph01.tci-thaijo.org/index.php/Scipsru/article/view/240788.