@phdthesis{UNY1818,
          author = {Nana Hasanah},
           title = {METODE KONVEKS-SIMPLEKS DALAM PENYELESAIAN PROGRAM NONLINEAR},
          school = {UNY},
            year = {2010},
           month = {July},
             url = {http://eprints.uny.ac.id/1818/}
}