Pisut Pongchairerks. 2002. An integration between assignment and transportation models. Field of Study Industrial Engineering, Kasetsart University;
Pisut Pongchairerks. (2002) An integration between assignment and transportation models . Kasetsart University/Bangkok.
Pisut Pongchairerks. An integration between assignment and transportation models. . Bangkok:Kasetsart University, 2002.
Pisut Pongchairerks. (2002) An integration between assignment and transportation models . Kasetsart University/Bangkok.