Pongpun Punpet. 2005. Ground state of eg electron in the spinless hubbard model. Field of Study Physics, Chulalongkorn University;
Pongpun Punpet. (2005) Ground state of eg electron in the spinless hubbard model . Chulalongkorn University/Bangkok.
Pongpun Punpet. Ground state of eg electron in the spinless hubbard model. . Bangkok:Chulalongkorn University, 2005.
Pongpun Punpet. (2005) Ground state of eg electron in the spinless hubbard model . Chulalongkorn University/Bangkok.