Udema, Ikechukwu I. “Theoretical Determination of the Mass Radii of the Nucleons and Heavier Subatomic Particles”. Asian Journal of Research and Reviews in Physics 3, no. 4 (September 7, 2020): 1-10. Accessed October 20, 2020. https://journalajr2p.com/index.php/AJR2P/article/view/30125.