Chirasak Mongkolkeha. 2017. Approximate solution method for mathematical problems by using generalized distance functions. Bangkok:Kasetsart University;
Chirasak Mongkolkeha. (2017) Approximate solution method for mathematical problems by using generalized distance functions (รายงานผลงานวิจัย). Kasetsart University:Bangkok.
Chirasak Mongkolkeha. Approximate solution method for mathematical problems by using generalized distance functions. Bangkok:Kasetsart University, 2017.
Chirasak Mongkolkeha. (2017) Approximate solution method for mathematical problems by using generalized distance functions (รายงานผลงานวิจัย). Kasetsart University:Bangkok.