Abdurrouf, A., Saroja, G. and Nurhuda, M. (2024) “Estimation of Energy Separation in Tunelling States in Symmetric-Hyperbolicus Double-Well Potential Problem using Filter Method”, Trends in Sciences. Nakhon Si Thammarat, Thailand, 21(3), p. 7355. doi: 10.48048/tis.2024.7355.