1. J N Bahcall, M H Pinsonneault and S Basu, Solar models: Current epoch and time dependences, neutrinos, and helioseismological properties, Astrophys. J., Vol.555, pp. 990–1012, 2001. astro-ph/0010346[astro-ph].
2. M J Cush, Wikimedia Commons, https://conmons.wikimedla.org/wiki/File:Standard_Model_of_Elementary_Particles.svg.
3. D Indumathi, Our particle universe, Resonance, Vol.22, No.3, pp.245–255, 2017.
4. The Particle Adventure, The Fundamentals of Matter and Force, https://particleadventure.org/.
5. Dorottya Szam, Wikimedia Commons.https://commons.wikimedia.org/wiki/File:Proton_proton_cycle.svg.