Febriana, F. N., V. Khoirunisa, W. F. Mark-Lee, and F. Rusydi. “Theoretical Study of the Stability of Acetylcholine Based on Molecular Orbital Theory Using Density Functional Theory”. Indonesian Applied Physics Letters, vol. 3, no. 1, Oct. 2022, pp. 16-19, doi:10.20473/iapl.v3i1.39777.