1.
Kawasaki T, Toyoda M, Watanabe T. THE HAHN-BANACH THEOREM AND THE SEPARATION THEOREM IN A PARTIALLY ORDERED VECTOR SPACE. J. Nonlinear Anal. Optim. [Internet]. 2011Dec.21 [cited 2021Dec.9];2(1):111-7. Available from: http://www.math.sci.nu.ac.th/ojs302/index.php/jnao/article/view/18