WASWA, V. E.; JOBUNGA, E. O.; KARIUKI, P. K. Electron impact elastic scattering by a calcium atom using the first order distorted wave method with a complex potential. African Journal of Pure and Applied Sciences, Nairobi, Kenya, v. 3, n. 2, p. 247–254, 2022. DOI: 10.33886/ajpas.v3i2.298. Disponível em: https://journal.ku.ac.ke/index.php/AJPAS/article/view/298. Acesso em: 26 aug. 2026.