Satrya Fajri Pratama, et al. “Preparation of Translated, Scaled, and Rotated ATS Drugs 3D Molecular Structure for the Validation of 3D Moment Invariants-Based Molecular Descriptors”. International Journal of Computer Information Systems and Industrial Management Applications, vol. 10, Jan. 2018, p. 11, https://cspub-ijcisim.org/index.php/ijcisim/article/view/369.